Advertisements
Advertisements
प्रश्न
Write the types of sex-determination mechanisms the following crosses show. Give an example of each type.
(i) Female XX with Male XO
(ii) Female ZW with Male ZZ
Advertisements
उत्तर
(i) The type of sex determination mechanism shown in female XX with male XO is male heterogamety.
Example- Humans
(ii) The type of sex determination mechanism shown in female ZW with male ZZ is female heterogamety.
Example- Birds
APPEARS IN
संबंधित प्रश्न
________ shows haplo-diploid type of sex-determination.
Define the following:
Sex chromosomes
In which livings, female decides the sex? Give two examples.
How is sex determined in human beings?
Match the items of Column I with Column II:
| Column I | Column II | ||
| i. | XX-XO method of Sex Determination | a. | Turner syndrome |
| ii. | XX-XY method of Sex Determination | b. | Female heterog ametic |
| iii. | karyotype-45 | c. | Grasshopper |
| iv. | ZW-ZZ method of Sex Determination | d. | Female homogametic |
Which of the following is an example of genetic variation?
Select the incorrect statement
The two versions of a trait (character) which are brought in by the male and female gametes are situated on
The sex chromosome in a human ovum is ______.
Which pair of organisms would NOT be expected to share the same sex determination system?
