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In X-linked recessive inheritance, why d...

In X-linked recessive inheritance, why does the disease gene often appear to skip generations?

A

x-linked diseases are only expressed in males

B

All X-linked diseases display incomplete penetrance

C

Disease is primarily transmitted through unaffected carrier females

D

Males with an affected gene may transmit but not show the disease

Text Solution

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The correct Answer is:
C
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TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. What is true for night blindness and haemophilia ?

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  2. What is true for thalassaemia?

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  3. In X-linked recessive inheritance, why does the disease gene often app...

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  4. If a mother and father both have one mutant gene for a disease with an...

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  5. Which one the four couples claiming the baby with O+ blood type are th...

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  6. The weight of fruit in a plant is determined by the number of dominant...

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  7. On selfing a plant of F(1)-generation with genotype "AABbCC", the phen...

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  8. In a population of 2000 individuals, 900 individuals are suffering fro...

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  9. In an organism, 4n=100. the haploid and monoploid number of chromosome...

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  10. In man, nucleolar organisers are not located in which of the following...

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  11. A dihybrid test cross ratio for two linked genes in a hybrid is

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  12. Colour blindness is characterized by

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  13. In human beings, sex determination has recently been studied in great ...

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  14. Nucleosomes give beaded appearance to chromosomes. They help in packin...

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  15. The two nucleosomes are joined by linker DNA to which is attached

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  16. Which among the following histone proteins is least conserved in cours...

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  17. In the region of Balbiani rings (puffs), DNA strand is uncoiled. It he...

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  18. Salivary glands chromosome were discovered by Balbiani (1881) from the...

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  19. In which stage, you will find lampbrush chromosomes in oocyte of frog?

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  20. Polytene chromosome becomes giant due to

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