Question

Read the following statements and select the correct option.
A. A daughter receives X-chromosomes from her mother only.
B. Human beings possess 22 pairs of autosomes and 1 pair of sex chromosomes.
C. An embryo is made up of a single cell.
D. A new human individual develops from a cell called gamete.
E. Pituitary gland produces thyroid-stimulating hormone (TSH), which stimulates the thyroid to produce the thyroxine.
F. A zygote is formed as a result of fertilization.

• A. Statements A, C and D are false, while statements B, E and F are true
• B. Statements A and C are false, while statements B, D, E and F are false
• C. Statements C and D are false, while statements A, B, E and F are true.
• D. Statements C and E are false, while statements A, B, D and F are true.

Answer 1

The correct option is A Statements A, C and D are false, while statements B, E and F are true

A, C, D are false, while B, E and F are true. Statement A is false because the daughter gets one X-chromosome from the father and one from the mother. Statement C is false as an embryo is formed by the fusion of the egg and the sperm. Statement D is false as a new human individual develops from the zygote after the fertilisation of the egg by the sperm.