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What is the chromosome pair for a boy?
A boy has one X chromosome from the mother and one Y chromosome from the father, making his chromosome pair for gender determination XY.
What chromosome pair is not given a number?
The sex chromosomes, X and Y, are not given a number. They determine an individual's sex and are not part of the standard numbered pairs of autosomes.
How many chromosome and chromosome pairs in humans?
There are 46 chromosomes per cell, with 22 pairs and an XX pair for females or an XY pair for males.
In humans what are the chromosome pairs 1 through 22 called?
Chromosome pair 23 in humans is the pair of sex chromosomes. In females, both sex chromosomes are the X sex chromosome, and in human males one sex chromosome is the X and the other is the Y chromosome.
One member of a pair or series of genes that occupies a specific position on a specific chromosome is referred to as?
An allele is one member of a pair or series of genes that occupies a specific position on a specific chromosome. Each allele can encode a specific trait or characteristic. When two alleles are present in an individual, they can interact to determine the physical and physiological traits of that individual.
