CELL DIVISION
MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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homologous chromosomes
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alleles
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dipliod
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genotypes
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Detailed explanation-1: -A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and centromere location. A homologous pair consists of one paternal and one maternal chromosome. In humans, there are a total of 46 chromosomes in the nucleus of a somatic cell.
Detailed explanation-2: -Homologous chromosomes are chromosomes that share: The same structural features (e.g. same size, same banding patterns, same centromere positions) The same genes at the same loci positions (while the genes are the same, alleles may be different)
Detailed explanation-3: -The two copies of a chromosome are called sister chromatids. The sister chromatids are identical to one another and are attached to each other by proteins called cohesins.
Detailed explanation-4: -Synapsis is the pairing of two homologous chromosomes that occur during meiosis. This takes place during the prophase stage of meiosis I.
Detailed explanation-5: -Heterozygous for a gene refers to when a homologous pair of chromosomes has different alleles of the same gene. A gene pair’s two alleles are found on homologous chromosomes. Alleles are a type of gene that differs from others.