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Which one of the following conditions correctly discribes the manner of determining the sex in the given example?
Options
(a) Homozygous sex chromosomes (ZZ) determine female sex in birds
(b) XO type of sex chromosomes determine male sex in grasshopper
(c) XO conditions in human as found in Turner syndrome, determines female sex
(d) Homozygous sex chromosomes (XX) produce male in Drosphila
Correct Answer:
XO type of sex chromosomes determine male sex in grasshopper
Explanation:
In grasshopper the males lack a Y-sex chromosome and have only an X-chromosome. They produce sperm cells that contain either an X chromosome or no sex chromosome , which is designated as O.
Related Questions: - Fertilization of sperm and ova takes place in
- The normal atmosphere the amount of oxygen in air and dissovled oxygen
- In the light of recent classification of living organisms into three domains
- Minerals known to be required in large amounts for plant growth include :
- In a river if its BOD percentage is high then
Topics: Genetics
(204)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Fertilization of sperm and ova takes place in
- The normal atmosphere the amount of oxygen in air and dissovled oxygen
- In the light of recent classification of living organisms into three domains
- Minerals known to be required in large amounts for plant growth include :
- In a river if its BOD percentage is high then
Topics: Genetics (204)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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