Question
Biology Question on Cell: the unit of life
In salivary gland chromosomes/polytene chromosomes, pairing is
A
absent
B
occasional
C
formed between nonhomologous chromosomes
D
formed between homologous chromosomes.
Answer
formed between homologous chromosomes.
Explanation
Solution
In salivary gland chromosomes/polytene chromosomes, pairing is formed between homologous chromosomes. A characteristics feature of these chromosomes is that somatic pairing occurs in them and hence their number appears half of normal somatic cells.