NEET BIOLOGY

Detailed explanation-1: -Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females. Females have two copies of the X chromosome, while males have one X and one Y chromosome. The 22 autosomes are numbered by size.

Detailed explanation-2: -The first 22 pairs of chromosomes are called autosomes. The 23rd pair of chromosomes are known as the sex chromosomes, because they decide if you will be born male or female. Females have two X chromosomes, while males have one X and one Y chromosome.

Detailed explanation-3: -Humans have 22 pairs of autosomes and one pair of sex chromosomes (XX or XY). Autosomes are numbered roughly in relation to their sizes. The largest autosome-chromosome 1-has approximately 2, 800 genes; the smallest autosome-chromosome 22-has approximately 750 genes.

Detailed explanation-4: -Humans have 46 chromosomes out of which 22 pairs or 44 chromosomes are called autosomes and one pair of chromosomes, i.e. XX in female and XY in male are called heterosomes or sex chromosomes.

Detailed explanation-5: -An autosome is any chromosome that is not a sex chromosome. The members of an autosome pair in a diploid cell have the same morphology, unlike those in allosomal (sex chromosome) pairs, which may have different structures. The DNA in autosomes is collectively known as atDNA or auDNA.