……………. chromosomes do not take part in sex determination.

In XO type of sex determination

State True or False (i) In birds, both the sexes possess two sex chromosomes. (ii) In butterflies sex determination is exactly opposite the condition found in grassnoppers .

In human beings, sex determination has recently been studied in great detail using techniques of molecular biology. The most important gene located on Y chromosome and involved in sex determination is:-

In Melandrium sex determination is of

ZO-ZZ type of sex determination is

Select the odd one out w.r.t genic balance theory of sex-determination in Drosophila (a) Y-chromosome plays no role in sex-determination (b) Given by C.B . Bridges (c) If X/A ratio is one, superfemales are produced (d) If X/A ratio is less than 0.5, supermales are produced

Sex chromosomes of birds are

Nongenetic sex determination occurs in

In one series of insects males have 17 chromosomes while female have 18 chromosomes. The type of sex determination in that species is

Electrodes that do not take part in electrolytic, reactions are known as .......... electrodes.