engineering recuitment Vizag Steel MT Mechanical 2020 Test Series General Science Biology Human body
Which of the following statements is true?
1
In grasshoppers and some insects, the male has only four sex chromosomes.
2
A male individual contains one X and two Y chromosomes.
3
In human beings, there are 46 chromosomes, of which 42 (21 pairs) are autosomes.
4
In diploid organisms having separate sexes, a specific pair of chromosomes in each diploid cell determines the sex of the individual; they are called sex chromosomes.