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Multiple Choice Quiz on Sex Determination and Linkage

This genetics quiz is designed to assess your basic knowledge in ‘sex determination and linkage ’. Questions come under ‘medium’ category. Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking ' Score'. Percentage score will be displayed along with right answers.
Sex Chromosomes of males( X ) and females (Y)

1. XY sex chromosomes were discovered by
Mendel
R Brown
Nettil Stevans
M J D White
2. Genic balance theory of sex determination was given
Bridges
Morgan
Mendel
Darwin

3. Sex determination was first of all studied in which plant?
Rumex
Datura
Melandrium
Mirabilus

4. XX male and XY female are very in humans. They are due to
genes of Y chromosome are on X chromosome
crossing over between X and Y
Non disjunction of chromosomes
All of these

5. Genes located on Y chromosomes are
autosomal genes
sex influential genes
holandric genes
mutant genes

6. One of the gene present exclusively on the X chromosome in humans is concerned with
baldness
red green colour blindness
night blindness
none of these

7. How many linkage groups will be present in the case of human beings
23
46
44
22

8. 1 map unit or centiMorgan (cM) is equal to
1 % recombination
10 % recombination
100% recombination
0.1% recombination

9. In a dihybrid cross, two recessive genes show 10 % recombinants. The distance between two genes is
10 map unit
20 map unit
5 map unit
100 map unit

10. Genetic map is one that
shows the stages during the cell division
establishes various stages in gene evolution
shows the distribution of various species in a region
establishes sites of the genes on a chromosome

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Correct answers:
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