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Homologous chromosomes are similar in all of these characteristics EXCEPT?
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∙ 11y ago
carry the same alleles for all traits
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∙ 11y 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.
A pair of chromosomes is called homologous because?
They encode the same information (except for the few differences between your mother and your father).
What results form the process of crossing-over during prophase 1?
I do GP Biology (9th year here), and I'm on the quiz "Week 13-Meiosis: The Life Cycle of S-x Cells". I got the question What happens during crossing over? The answer was "homologous chromosomes trades pieces of DNA." Hope this was the answer you're looking for!
How many chromosomes does a kidney cell have?
There are 46 chromosomes in kidney cells, big toe cells, and tip-of-the-nose cells.This is because humans are diploid organisms (having two sets of chromosomes in all cells except gametes(23 chromosomes) and mature red blood cells, which extruded their nuclei when they were developing), and 46 is the human diploid number.
How similar are two people with respect to chromosomes genes and alleles?
No two people in the world are exactly the same except identical twins. Their chromosomes are exactly the same because the egg split in two and formed two identical embryos.
All chromosomes except the X and Y sex chromosomes are called?
homologous chromosomes and autosomal 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.
A pair of chromosomes is called homologous because?
They encode the same information (except for the few differences between your mother and your father).
What are homologous choromosomes?
Homologous chromosomes are pairs of each other. They are chromosomes that are identical to each other except for a few variations. Everybody has one from their mom and dad. Everybody has 46 chromosomes, but in reality it is less confusing to say "we have 23 pairs of chromosomes."
Do homologous chromosomes always have identical alleles?
no they don't necessarily have to have the same alleles but they have the same genes. Homozygous chromosomes would have the same allele for a particular gene and heterozygous chromosomes would have different alleles for a particular gene.
True or False Explain A chromosome in a primary human oocyte may synapse with any other chromosome in the same cell?
Synapse occurs specifically between homologous pairs. Homologous chromosomes are non-identical chromosomes that can pair (synapse) during meiosis. Except for the sex chromosomes, homologous chromosomes share significant sequence similarity across their entire length, typically contain the same sequence of genes, and pair up to allow for proper disjunction during meiosis
What results form the process of crossing-over during prophase 1?
I do GP Biology (9th year here), and I'm on the quiz "Week 13-Meiosis: The Life Cycle of S-x Cells". I got the question What happens during crossing over? The answer was "homologous chromosomes trades pieces of DNA." Hope this was the answer you're looking for!
Paired chromosomes are said to be what?
Except for the sex chromosomes paired chromosomes are homologs.
Describe three events that occur during meiosis 1 but not during mitosis?
1.Synapsis and crossing over in prophase I: Homologous chromosomes physically connect and exchange genetic information 2.At the metaphase plate, there are paired homologous chromosomes (tetrads), instead of individual replicated chromosomes 3.At anaphase I, it is homologous chromosomes, instead of sister chromatids, that separate
What pairs of human chromosomes are autosomes?
Autosomes are the chromosomes which do not determine the sex of the offspring. for example, in humans, there are 22 pairs of autosomes, and one pair of sex chromosomes. Autosomes are chromosomes 1-22, and the sex chromosomes are chromosome 23.
Why don't all cells use mitosis?
Some cells use meiosis instead. This is similar except homologous chromosomes split in the first anaphase and sister chromatids split in the second anaphase. Basically, the only cells that don't split via mitosis are sex cells (gamtes) which contain 1/2 the genetic data that an ordinary cell contains.
Diploid means what?
Diploid: adj. 1 Double or twofold. 2 Having a homologous pair of chromosomes for each characteristic except sex, the total number of chromosomes being twice that of a gamete.-n 1. a diploid cell. 2. An individual characterized by a diploid chromosome number.It has two copies of each chromosome.
