Q2 of 26 Page 284

Define sex determination.

•Sex Determination is defined as the biological process for identifying gender and the development of sexual characteristics specific to an organism.

•Organisms reproducing through sexual reproduction have two sexes:- Male and Female respectively in some special cases there are Hermaphrodites(Bisexual species).


•Sex is mainly determined either by Genetic Factors or Environmental Factors


More from this chapter

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1

New species may be formed if:

i. DNA undergoes significant changes in germ cells


ii. There is no change in the genetic material


iii. Change in number of chromosomes


iv. Mating does not take place

 1

The presence of which of the following types of organs in two animals indicates that they are not derived from a common ancestor?

 2

What are the mechanisms or methods of sex determination in different organisms?

 2

Name the ancestor of the following:

Broccoli, Kohlrabi, Kale