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प्रश्न
Differentiate between male and female heterogamety.
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उत्तर
Male heterogamety: Male heterogamety includes human males having XY sex chromosomes and males of some insects, such as grasshopper and bugs, having XO sex chromosomes.
Female heterogamety: Female heterogamety includes females of some species of birds, fishes and insects. Females of butterfly and moth consist ZO sex chromosomes, while females of fish, reptiles and birds consist ZW sex chromosomes.
संबंधित प्रश्न
Differentiate between ‘ZZ’ and ‘XY’ type of sex-determination mechanisms.
Which of the following combinations of sex chromosomes produce a male child : XX or XY?
In a human, how many chromosmes are present in a sperm in the testes?
The human animal which has an XY pair of chromosomes is called :
(a) male
(b) hybrid
(c) female
(d) doomed
The exchange of genetic material takes place in :
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
A zygote which has inherited an X chromosome from the father will develop into :
(a) baby boy
(b) baby girl
(c) adult
(d) either boy or girl
Choose the correct answer:
A single recessive trait, able to express must be on _________
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Differentiate Intersexes from Supersexes.
What is male heterogamety?
Which type of sex determination is observed in honey bee?
Identify the organism in which ZZ-ZW type of sex determination is observed.
Which of the following develops through parthenogene is?
The ‘X’ body of Henking was observed in ______.
Does a male child inherit X chromosome from his father? Justify.
Which of the following group shows ZW-ZZ type of sex determination?
Which pair of sex chromosome will determine a male?
