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In a certain taxon of insects some have ...

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are:

A

males and females, respectively

B

females and males, respectively

C

all males

D

all females

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The correct Answer is:
a
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TRUEMAN BIOLOGY-NCERT Exemplar Questions +2 (PRINCIPLE OF INHERITANCE AND VARIATION)-MCQs
  1. All genes located on the same chromosome :

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  2. Conditions of a karyotype 2n pm 1 and 2n pm 2 are called :

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  3. Distance between the genes and percentage of recombination shows :

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  4. If a genetic disease is transferred from a phenotypically normal but c...

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  5. In sickle cell anaemia glutamic acid is replaced by valine. Which one ...

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  6. Person having genotype I^A IB would show the blood group as AB. This i...

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  7. ZZ/ZW type of sex determination is seen in :

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  8. A Across between two tall plants resulted in offspring having few dwar...

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  9. In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that:

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  10. Which of the following will not result in variations among siblings?

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  11. Mendel's Law of independent assortment holds good for genes situated o...

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  12. Occasionally, a single gene may express more than one effect. The phen...

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  13. In a certain taxon of insects some have 17 chromosomes and the others ...

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  14. The inheritance pattern of a gene over generations among humans is stu...

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  15. It is said that Mendel proposed that the factor controlling any charac...

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  16. Two genes 'A' and 'B' are linked. In a dihybrid cross involving these ...

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  17. In the F2 generation of a Mendelian dihybrid cross the number of pheno...

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  18. Mother and father of a person with 'O' blood group have 'A' and 'B' bl...

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