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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.
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Topics: Genetics
(204)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a forest ecosystem fungi comes under
- Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are
- During the course of photosynthesis in plant
- The natural cycles of carbon, oxygen, nitrogen, water and phosphorus, sulphur, etc
- Common cold differs from pneumonia in
Topics: Genetics (204)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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