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What is the difference between translocation and nondisjunction?
Nondisjunction is when a Chromosome is unable to separate correctly during cell devision. Translocation (In Chromosomes) is when an abnormality is caused by the rearrangement of parts between non-homologous Chromosomes.
What are chromosomes that have the same length and carry genes for the same traits?
Homologous chromosomes are chromosomes that have the same length and carry genes for the same traits. One homologous chromosome is inherited from each parent. During meiosis, homologous chromosomes pair up, allowing for genetic material to be exchanged between them.
What portion of the human Y chromosome is homologous to the human X chromosome?
The pseudoautosomal regions (PARs) at the tips of the Y chromosome are homologous to regions on the X chromosome. These PARs are responsible for pairing and recombination between the X and Y chromosomes during meiosis. About 5% of the Y chromosome is homologous to the X chromosome in humans.
What is the difference between chromosomes and nucleosomes?
Chromosome Nucleosome
Difference between sister chromatids and homologous chromosomes?
Homologous chromosomes are individual chromosomes inherited from each parent. Sister chromatids are the result of DNA replication, and the are identical.
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 is the differences between bivalent and tetrad?
A bivalent refers to a pair of homologous chromosomes that have synapsed during meiosis. A tetrad, on the other hand, consists of four chromatids of two homologous chromosomes that come together during meiosis. Tetrad formation involves the pairing of homologous chromosomes to exchange genetic material through crossing over, leading to genetic variation.
What is the difference between the male and female karyotypes?
The main difference between male and female karyotypes is the presence of sex chromosomes. Males typically have one X and one Y chromosome (46, XY), while females have two X chromosomes (46, XX). This difference in sex chromosomes determines the biological sex of an individual.
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 chromatids are involved in crossing over of a homologous pair of chromosomes?
Crossing over involves the exchange of genetic material between homologous chromosomes during meiosis. Each homologous pair consists of four chromatids (two from each chromosome), and crossing over occurs between a pair of chromatids from each homologous chromosome. This results in the exchange of genetic material between the chromatids.
What is the difference between a haploid cell and the diploid cell?
A diploid cell differs from haploid is that the diploid cell has homologous chromosomes as when the haploid cell doesn't have homologous chromosomes.
What is the difference between a diploid cell and a haploid cell?
A diploid cell differs from haploid is that the diploid cell has homologous chromosomes as when the haploid cell doesn't have homologous chromosomes.
