NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pairs of chromosomes having genes for the same traits are called ____
A
homologous
B
similar
C
opposite
D
diploid
Explanation: 

Detailed explanation-1: -Two chromosomes in a pair – normally one inherited from the mother and one from the father. For example, the two copies of Chromosome 1 in a cell would be referred to as homologous chromosomes.

Detailed explanation-2: -What are Homologous Chromosomes? Homologous Chromosomes are made of chromosomal pairs of the same length and centromere positions for the genes corresponding to the same loci. Typically one of the chromosomes is inherited from the father and the other from the mother.

Detailed explanation-3: -When an individual has two of the same allele, whether dominant or recessive, they are homozygous. Heterozygous means having one each of two different alleles.

Detailed explanation-4: -The pairs of autosomes are called “homologous chromosomes.” Homologous chromosomes have all of the same genes arranged in the same order, but there are small differences in the DNA letters of the genes.

Detailed explanation-5: -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. Half of them (22 autosomes + X or Y chromosome) are inherited from the father and the other half (22 autosomes + X chromosome), from the mother.

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