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What are homologous chromosomes and what characteristics do 2 homologous chromosomes share?
Wiki User
∙ 13y ago
Homologous chromosomes have the same shape, size and position of the centromere. They have the same genes in the same order.
Wiki User
∙ 13y ago
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Is homologous chromosomes only present in cells that undergo meiosis?
Usually they dont as homologous chromosomes form bivalents with other homologous chromosomes and crossing over occurs between the 2. But if a chiasmata does form between the t homologous chromosomes they can change information.
What happens in meosis 1 that does not occur in meosis 2?
Pairing between homologous chromosomes
Does homologous pair contain 2 chromosomes or the 4 chromatids after doubling?
It depends on if it was during the process of mitosis or mitosis. And, how many chromosomes it began with.
In what phase of meiosis does chromosomes line up along equator not in homologous pairs?
AnaPhase1
In humans the number of tetrads formed during mitosis is?
A tetrad is the pairing of homologous chromosomes. A human offspring inherits 23 chromosomes (N) from each parent upon fertilization, giving the offspring 46 chromosomes (2N). In meiosis, homologous chromosomes (N from mom and N from dad) come together and form a tetrad, which consists of 2 homologous chromosomes. Since you inherit a chromosome from both parents (2N) that pair up to form a tetrad, you will have 23 tetrads that have a chromosome from mom and dad paired together. 1 N from mom + 1 N from dad = homologous pair = 1 tetrad 2N/2 = N tetrad --humans--> 2(23 chromosomes)/2 = 23 tetrads Diploid#/2 = # tetrad
How many chromosomes are in a homologous pair?
in a homologous chromosome there are two chromosomes ( a chromosome and a sister chromosome)
Are tetrad and homologous chromosomes the same?
Homologous chromosome is when a pair of chromosomes containing the same linear gene sequences, each derived from one parent, and a tetrad is formed when 2 homologous chromosomes join together
How would you know if 2 chromosomes were homologous pairs?
Therefore when two chromosomes of the exact structure exist, they are able to pair together to form homologous chromosomes
Is homologous chromosomes only present in cells that undergo meiosis?
Usually they dont as homologous chromosomes form bivalents with other homologous chromosomes and crossing over occurs between the 2. But if a chiasmata does form between the t homologous chromosomes they can change information.
How many homologous pairs of chromosomes does a diploid human cell have?
A human gamete does not have any pairs of homologous chromosomes. A single human gamete contains 23 chromosomes, or a half set. None of these chromosomes are homologous with each other.
What is meant by synapsis?
A synapsis is the pairing of 2 homologous chromosomes.
What is the term for two chromosomes that have the same length?
Homologous, but keep in mind that only specific pairs of chromosomes numbered on a karyotype (e.g. 1, 2, 3) can be homologous.
How many pairs of homologous chromosomes are found in human body cells?
Human cells have 23 homologous pairs. They also must go through meiosis before that. Females have 2 X chromosomes, while Males have an X and a Y chromosome. That's why the males cells decide the gender of the child.
When do homologues pair?
A homologous pair is a pair of chromosomes that exist in diploid cells. One of the pair you inherit from your father, the other from your mother. A human has 22 pairs of homologous chromosomes (these do not include sex chromosomes). They are the same length and shape. They also share the same genes. The sequences of the genes may be different, which is what results in genetic variation, but the genes are the same.
What happens in meosis 1 that does not occur in meosis 2?
Pairing between homologous chromosomes
Does homologous pair contain 2 chromosomes or the 4 chromatids after doubling?
It depends on if it was during the process of mitosis or mitosis. And, how many chromosomes it began with.
In what phase of meiosis does chromosomes line up along equator not in homologous pairs?
AnaPhase1
