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प्रश्न
ZW-ZZ system of sex determination occurs in
पर्याय
Fishes
Reptiles
Birds
All of these
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उत्तर
All of these
संबंधित प्रश्न
Fill in the following blank with suitable word :
Genes always work in ................ .
Does genetic combination of mother play a significant role in determining the sex of a new born baby?
Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?
Choose the correct answer from the four options given below :
In a human male, a sperm will contain :
Give Reason:
Why X-linked recessive diseases are more common among males than females.
Explain the mechanism of sex determination in birds.
Explain the mode of sex determination in honeybees.
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 |
Number of autosomes present in liver cells of a human female is ______.
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are ______.
- large chromosome
- small chromosome
- Y-chromosome
- X-chromosome
