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Cells and Genetics
This section is for questions regarding cellular organelles, functions, and how cells interact with each other. This section also covers topics of genetics such as variation, pedigrees, Mendelian genetics and mutations.
Total questions 112900
What experiments did Mendel conduct and what were his results?
He conducted the pea plant experiment and is considered the father of genetics because he experimented with thousands of pea...
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What is the cost of DNA testing over the internet?
Apparently it could be $500 or $600 if you require a legally binding result, or half that if the results don't need to be legally...
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What is a gene?
A gene is a part of DNA that codes for a particular trait of an organism. For example, one gene may code for the production of...
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How do you identify a virus?
Viruses are tiny infectious agents, much smaller than bacteria. They are about the size of large proteins. (Some may be bigger...
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What are the three parts of the cell theory?
The three parts of the cell theory are: 1. All living things are composed of one or more cells. 2. Cells are the basic units...
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Is SIDS or apnea genetic or inherited?
Good question!!! Dont know yet. Research is still looking into it. Some researchers say no some say yes.
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What does genetically modified organism mean?
Genetically Modified Organisms Gene splicing or hybrid species are both genetically modified. That is true, but there are...
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What is value delivery system?
Value Delivery System (VDS) No no no no no, ER(: Whether you are working in a sales organization or a factory or an R&D...
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What are the stages of mitosis?
The four stages or phases of mitosis in order are: Prophase: Chromatin condenses into chromosomes and the centrioles and mitotic...
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What do centrioles do?
Centrioles line up the chromosomes inside the cell and then they pull the chromosomes apart during cell replication. - Plant...
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What is a nucleolus?
Nucleolus is a structure inside a nucleus which produces the two parts of ribosomes. A cell nucleus may contain more than one...
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What is a recessive gene?
A recessive gene is an allele that often offers little to no phenotypic effect, and it is almost always used in as a relative...
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Where are blood cells made?
bone marrow
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What is cell biology?
Cell Biology Cell biology is the science of studying how cells function such as their reproduction and metabolism, their...
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What is an analogy for a cell membrane?
Analogy for a Cell Membrane Compare it to a border customs agent, inspecting what goes in or out of a "country". Or a...
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How big is the human genome?
The human genome is made up of DNA, which has four different chemical building blocks. These are called bases and abbreviated A,...
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What would be the problem if cellular respiration took place in just one step?
All of the energy from the glucose would be released at once, and most of it would be lost in the form of light and/or heat.
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What are different examples of a person's DNA?
I am going to assume you are asking about blood types. There is A, B, AB, O. These four blood types also have a positive or...
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What is an analogy for a peroxisome?
The ideal analogy for this cell organelle would be 'the recycle bin of the cell' Essentially, this organelle is concerned with...
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What are analogies for mitochondria?
Here are some possible analogies for mitochondria in cells: the fuel cell in a hydrogen/electric powered automobile (good...
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What is heredity?
Heredity are traits passed down from your parents to you that influence your DNA. Heredity is a process when person gets some of...
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What are dominant and recessive traits of the Irish people?
Irish Traits Only approximately 10 percent of the Irish are redheaded and red hair is a recessive trait.
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What happens when the cell membrane or plasma membrane ruptures or breaks down?
The plasma membrane will actually reassemble itself. Believe it or not, it is actually made to break and reassemble on purpose.
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How accurate is DNA evidence?
Generally, DNA is 99.9% reliable. In practical terms, in a city of 1 million people, if a person commits a crime and is...
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Why is the deleterious sickle cell allele still present in the gene pool of the US?
Sickle-Cell Anaemia First it should be noted that there is no such thing as a inherently deleterious version of an allele....
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What does the cell membrane do for a cell?
Cell Membrane It protects and supports the cell as well allowing regulation of what goes in, like food, water, and other...
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Why does DNA twist?
DNA twists because of the 3 dimensional structure of the linking molecules along its backbone. These are phosphate molecules and...
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What are analogies for centrioles?
Centrioles are like spindles. Answer A Centriole is like a straw because they both are tubes that let things get from one end...
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What is an example of homeostasis?
examples of homeostasis: regulation of body temperature, control of blood glucose levels, the regulation of salt and water...
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Would you be at a greater risk of having a child with autism if the mother is mid thirties in age and the father has a half brother with autism?
Yes. A woman's risk of having a child with autism increases with age. Women in their 30s and 40s are at a higher risk than...
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What is an ER Diagram?
Entity Relationship Diagram is a high-level description of a conceptual data model.
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Where does mRNA formation occur?
mRNA is produced in the nucleus by DNA transcription. Afterwards, introns are removed, or "spliced" out of the mRNA. Pre-mRNA...
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Why is the cell called the basis of life?
A cell is defined as a structural and functional unit of an organism because it is the smallest thing that has the attributes we...
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What are cells?
It's in all the science books. Cells are the basic unit of structure and function of the human, animal, and any other living...
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Are there ribosomes in a plant cell?
Ribosomes Yes, in fact there are ribosomes in both plant and animal cells. That's right. Ribosomes are the site of synthesis...
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What is fermentation?
Fermentation is the process by which cells release energy under anaerobic conditions (generally). Several major products of...
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If you've been asked to do a DNA test to verify a family relationship how would a simple DNA test like this be done and how much would it cost?
Depending on where you live a DNA test can range from $150.00 to $500.00 but you should check your phone book or on-line for...
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What is the pupose of DNA?
The main purpose of DNA is Genetic Transformation..DNA is nothing but Genome which contains the biological information needed to...
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What is a microscope and how is it used?
To view microorganisms living in another organism that cannot be seen by the naked eye. ...
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Can I get the structure of a white blood cell?
white blood cells have nucleii (unlike red blood cells) and do not contain hemoglobin (again, unlike red blood cells). they are...
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What is independent assortment?
Independent assortment is the random assortment of chromosomes during the production of gametes, the results are genetically...
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What are the top 100 hard analogies?
A list of medical analogies can be found on this page: http://www.altoonafp.org/analogies.htm
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What are the differences between normal cells and cancerous cells?
There are 2 types: benign where the cancerous cells are surrounded by a fibrous membrane preventing metastasis. cancerous: the...
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What does DNA crossing over result in?
Often occurring in meiosis, a DNA crossover (often referred to a recombinant event) results in two sister chromatids meeting at a...
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What is gene splicing?
Gene splicing is nothing but the removal of introns(intervening sequences) from the primary trascript of of a discontinuous gene...
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Who cloned Dolly the sheep?
The person who cloned dolly was a man named ian wilmut keith campbell, however he had a team who helped him to create dolly in...
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What is a good analogy of cell membrane function?
Cellophane is a good analogy. It is a semi-permeable membrane which is permeable to water and small molecules, but not to large...
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How does one culture nerve cells?
Each type of cell has its own special requirements in terms of exact pH, nutrients, and growth factors. And, nerve cells require...
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What is a Golgi apparatus?
Golgi Apparatus or Golgi Bodies are a protien-packaging organelle composed of membranous sacs.
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What is the difference between DNA and RNA?
All cellular (living) organisms contain both DNA and RNA. Viruses, which are generally not considered to be living, contain one...
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What is a locus?
Loci A locus (plural loci) is the postion on a chromosome where a gene is found. A useful analogy would be the address - 'Gene...
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What does cellular respiration and photosynthesis have in common?
Plants fo photosynthesis ................animals do cellular resperation. <3 Both the processes are performed by...
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What is the job of an enzyme?
Enzymes are the protein molecules which are involved in the metabolic reactions in the body. These enzymes act as catalysts to...
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What is the importance of cheek cells?
"Cheek cells make up your cheeks. Without them, humans would be cheek-less. That's a very "tongue-in-cheek" response (hold for...
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What is a gene bank?
Here are 3 definitions: A place where scientists store DNA information from plants and animals so that they can use it to...
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What is an analogy for the nuclear membrane?
Analogy for Nuclear Membrane It's like a traffic stop.
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Is wavy hair an incomplete dominant trait or a recessive trait like straight hair?
Multiple alleles in human traits Most human traits are controlled by multiple genes, and thus multiple alleles. Simple...
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What are analogies for a vacuole?
digestive system like a school bag as vacuoles are storage sacs for solid or liquid contents similarly school bags are also...
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What is an example of a isotonic solution?
Normal saline solution (0.9% NaCl) is considered isotonic with blood (although it actually has a slightly higher degree of...
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Do free amino acids have peptide bonds?
They Do Not Have Peptide Bonds. No. A peptide bond is the link between two amino acids. Therefore free amino acids are not...
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Why is it important to purify the DNA away from cellular components prior to analysis of the DNA?
This may help determine what the person sort of looks like and what color their hair is, ETC. I think that they do it so they can...
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What extent does the human erythrocyte meet the definition of a eukaryotic cell?
What extent does the human erythrocyte meet the definition of a eukaryotic cell?
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What is an analogy for Mitochondria?
Mitochondria The Mitochondria is the powerhouse of the cell. It generates energy to make things happen. Powerhouse It is...
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What is cellulose?
Cellulose is a long-chain polymeric polysaccharide carbohydrate, of beta-glucose . It forms the primary structural component of...
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What is the function of goblet cells?
Goblet cells secrete a protective lubricating mucous to help trap dust and bacteria so it can be transported by your mucosal...
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What does a vacueles do?
an organelle, located in the cell's cytoplasm, that is the site of protein synthesis. It is actually a protein consisting of 2...
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What are analogies for a nucleolus?
If the nucleolus is the president of a factory then the nucleolus is the manager. Just picture the cell as a factory, everybody...
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What is an analogy for mitochondrial DNA?
Mitochondrial DNA Mitochondria are the powerhouses of the cell. An analogy of mitochondria could be a battery.
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What is a Punnett square?
It is a diagram that helps people calculate the probabilities of different genotypes arising from a particular genetic cross. ...
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If z is a substrate for either enzyme a or enzyme b what is the michaelis constant of enzyme a?
Y to the GOOGLE power of x5
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What does the endoplasmic reticulum do?
has to do with a cell
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What color eyes and hair will a child most likley have if the father of the child has brown hair brown eyes and the mother has red hair hazel eyes?
ok. go back to 5th grade. do you remember doing dna? like using rabbits and seeing what color the babies will be? the dominant...
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What is DNA?
A double-stranded nucleic acid that contains the genetic information for cell growth, division and function Its shape is a...
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What are haploid cells?
They are cells that only have half the chromosomes that normal cells do, such as sex cells in humans which contain 23 chromosomes...
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Do skeletal muscles cardiac muscles and smooth muscles have more than one nucleus?
Skeletal muscle cells have multiple nuclei that are arranged at the peripherary of the cytoplasm. Smooth Muscle cells have...
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What is RNA?
Ribonucleic acid or RNA is a nucleic acid, consisting of many nucleotides that form a polymer. Each nucleotide consists of a...
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What is the function of mitochondria?
Provide energy to cells Also known as the powerhouse of the cell, the mitochondria provide the location for the production of...
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Why does DNA have a negative charge?
knowing an ion likes you DNA has a negative charge because of the phosphate ions in its chemical "backbone".
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What stage does chromatin condense into chromosomes?
in the prophase
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What is the main function of lipids?
Lipids are fats. Their primary purpose in the body is energy storage- a very small mass of lipids can store a very large amount...
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What are the main functional regions of cell?
NUCLEAS AND MITOCHONDRIA AND RER/SER
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Is a cork cell nonliving or living?
it depends upon what state the cell is in Answer: A cork cell is living when it is part of a living cork tree, but when the...
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Is DNA a protein?
No. DNA (deoxyribonucleic acid) is a nucleic acid, composed of phosphate and sugar groups, with purine and pyrimidine bases....
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How much did a DNA test cost in 2001?
According to city journal in winter 2000, an individual DNA test would cost only about $50-$100 to perform, but you will probably...
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What is mitosis the production of?
Mitosis is the production in which the nucleus divides to form two identical nuclei.Chromosones play an important part in mitosis.
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What is an example of phagocytosis?
phagocytosis occurs in our body when some foreign particle enters inside it, our white blood cells engulf it, and then digest it....
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Why are we made of small cells and not large cells?
The "simple" answer is that small cells can more easily transport and transpire materials into and out of themselves. Cells "eat"...
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How can you have brown hair if you are part German?
Half-German with Brown Hair? You have a brown hair gene. answer nationality has nothing whatsoever to do with hair...
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What is cell transformation?
cell transformation is kdoa dieolsd id
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What is the result of cellular respiration?
The result of cellular respiration is the gain of energy in the form of ATP molecules.
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What are the chances if your father is black and mother is white that you will have a black child with a white boy?
25%--genes are half of each parent. She's 50% black 50% white. Her child's skintone is based on how many genes of each pool she...
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Why is RNA primase not DNA primase?
RNA and DNA are different in composition, even though they are quite close. As the names suggest, RNA primase only works to build...
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Human cheek cells are epithelial cells which are highly specialized for protection List some of the functions that these cells cannot carry out?
contraction as also they look like little dots that move all over the place to place and finally reach there place they stop and...
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What happens on a journey of a cell?
this is a question without an answer
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What is the most important cell organelle?
[All cell organelles are equally important. If the nucleus is concerned with the genetic constitution of the organism, the...
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Who discovered ribosomes?
Ribosomes were first observed in the mid-1950s by Romanian cell biologist George Palade using an electron microscope as dense...
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Who was Gregor Mendel?
Gregor Mendel was a little-known monk in central Europe, later becoming 'the father of genetics' by studying dominant and...
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What does chromatin consist of?
Chromatin is the substance that makes up chromosomes. It is composed of DNA and proteins that are closely associated with DNA,...
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What is the molar concentration of human DNA in a human cell?
Human cells vary in size and volume. DNA is fixed in its size. That makes it kind of hard (like impossible) to state a...
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Who discovered DNA and when?
MAAAAAA
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