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What is the probability that in an organism with a haploid number of 15 a sperm will be formed that contains all 15 chromosomes whose centromeres were derived from maternal homologs?
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∙ 10y ago
1/33000
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∙ 10y ago
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Paired chromosomes are said to be what?
Except for the sex chromosomes paired chromosomes are homologs.
What are the matching pairs of chromosomes in the diploid cell called?
They are called homologous chromosomes (but can also be referred to as homologues or homologs).
What is the normal number of chromosomes in human body cells?
Each organism has a distinct number of chromosomes, in humans, every cell contains 46 chromosomes. Other organisms have different numbers, for instance, a dog has 78 chromosomes per cell. Somatic Cells - body cells, such as muscle, skin, blood ...etc. These cells contain a complete set of chromosomes (46 in humans) and are called DIPLOID. Sex Cells - also known as gametes. These cells contain half the number of chromosomes as body cells and are called HAPLOID Chromosomes come in pairs, called Homologous Pairs (or homologs). Imagine homologs as a matching set, but they are not exacly alike, like a pair of shoes. Diploid cells have 23 homologous pairs = total of 46 Haploid cells have 23 chromosomes (that are not paired) = total of 23
Why do alleles occur in pairs?
7th grade science is a pain ain't it.... Paired Chromosomes.
No pairing of homologs occurs?
no paring of homologs occurs in mitosis.
Why are germ cells diploid prior to their first meiotic division?
Germ cells diploid prior to their first meiotic division as a means to produce homologous chromosomes , or homologs
What are homologs?
Homologs are another term for homologous chromosomes.They are a pair of chromosomes of the same length, centromere position, and staining pattern that posses genes for the same characters at corresponding loci.
Which cell has single set of chromosomes?
I'm assuming you mean 46 chromosomes. This is all cells. All cells have 46 chromosomes (the diploid number). Only gametes (sex cells, ie sperm and egg) have 23 chromosomes (sperm and egg meet to make a cell with 46 chromosomes). Cells dividing my meiosis (to produce gametes) have 92 chromosomes as they double up so they can half to get 2 cells with 46 chromosomes when they divide and therefore can produce the games with he haploid number (23)
What are strands of DNA called?
During Prophase I, DNA is exchanged between homologous chromosomes.Meiosis begins when a cell's chromosomes are duplicated by a round of DNA replication. The strand holding the DNA is the homologs and has an exact copy know as a sister chromatid.
What is the difference between a chromatid and a sister chromatid?
Homologous chromosomes is a pair made of a paternal and maternal chromosomes. But sister chromatid is either pairs of paternal or maternal chromosomes
What are 'homologous pairs' of chromosomes?
It means they are the same.Homologous chromosomes (also called homologs or homologues) are chromosome pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci. One homologous chromosome is inherited from the organism's mother; the other from the organism's father.
Homologs line up along equator?
metaphase I
