Question

How many sex chromosomes does a normal human inherit from father? 
(a) 1 
(b) 2 
(c) 23
(d) 46 

Answer 1

Hint: The number of chromosomes carried by the father is neither prime nor composite number. This number is the first number of natural numbers. 

Complete answer:
Sex chromosomes always occur in a pair and one chromosome is obtained from the mother and the other from the father.
Each parent contributes to half of the child’s genetic content. 22 pairs of autosomes are contributed by both the parents and one sex chromosome is inherited from each parent. Human females have XX chromosomes, and males have  XY chromosomes. Thus, sperm from the male can contribute X or Y chromosomes to the child. The sperm is the determining factor regarding the child's sex. If the sperm contains an X chromosome it will fuse to form a female with the X chromosome of the egg. If the sperm contains a Y chromosome, then a male child will result. 
So, the correct answer is ‘1’.

Additional Information:
- Sex chromosome, either of a pair of chromosomes determining whether a person is male or female. Scientists label the sex chromosomes of human beings and other mammals as X and Y. The sex chromosomes in humans consist of one pair of a total of 23 pairs of chromosomes. The other 22 chromosome pairs are termed autosomes.
- Individuals who have two X chromosomes (XX) are female; those who have one X chromosome and one Y chromosome (XY) are males. The X chromosome resembles a large autosomal, long, and short-arm chromosome. The Y chromosome has a long arm and a brief second arm.
- when a cell divides to produce gametes, (the gametes will have half the normal number of chromosomes) during meiosis will form a route to maleness or femaleness. The male XY sex- chromosome pair separates during meiosis and passes an X or Y to separate gametes; the result is that one-half of the gametes (sperm) formed to have the X chromosome and the other half contain the Y chromosome.
- The female has two X chromosomes and all- female egg cells bear one single X. When the X- bearing sperm fertilizes the egg, then it forms females (XX), while eggs fertilized by Y- bearing sperm become males (XY).

Note: In the paired autosomes, each member carries alleles (forms) of the same genes, whereas the paired sex chromosomes do not carry an equivalent complementary of genetic information. The X chromosome is large and carries more genes than does the Y.