Question

select a female heterogametic animal from the following
a) Human beings
b) Drosophila
c)Birds
d)Grass Hooper​

Answer 1

Answer:

drosophila is your answer plz mark as brain list

plz mark this answer as brain list plz plz

Answer 2

Answer:

Among the following options c) Birds represent the female heterogametic animals.

Explanation:

• Whether an organism will become a male, a female, or a bisexual (hermaphrodite) is determined very early during development.

• Sex determination results in the development of individuals with characteristics that allow them to be identified as males, females, or in some cases, bisexual, most often spelt as hermaphrodites.
• Animals with two different sex chromosomes are called heterogametic sex and are thus able to produce two different types of gametes.
• Conversely, animals with homogametic (similar) sex can only produce one type of gamete.
• In humans (as well as many other animals), males generally have one X and one Y chromosome(XY), while females have two X chromosomes (XX). Hence males are heterogametic.

• Likewise in Drosophila (Fruitfly), the female fly is homogametic(XX), and the male fly is heterogametic (XY) with two dissimilar X & Y chromosomes. (XX female and XY male type)
• In insects especially grasshoppers, in the male there is no male for the X chromosome, hence the name XO is given, and there is no Y chromosome. (XX female and XO male type)
• In Birds and butterflies, the female is heterogametic having dissimilar Z and W chromosomes whereas the male is homogametic having similar ZZ chromosomes.
• It is a convention to designate females as ZW instead of XY and males as ZZ in place of XX. (ZW female and ZZ male type)

Hence the correct option is c) Birds.

#SPJ3