Tag: unravelling genetic mysteries

Questions Related to unravelling genetic mysteries

Which of these is not a part of Mendel's laws

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. Law of independent assortment

  2. Law of segregation

  3. Law of dominance

  4. Law of linkage

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Correct Option: D
Explanation:

Linkage is the tendency of two or more genes to inherit together as a pair and not to sort out independently.
Thus, linkage is not applicable according to Mendelian principles.
Linkgae is strictly against Law of independent assortment where Mendel explains that the characters are sorted out independently while forming gametes.

Which of the following characteristics represent inheritance of dihybrid crosses in pea :
a) Incomplete dominance
b) Dominance
c) Law of segregation 
d) Co - dominance
e) Polygenic inheritance
f) Law of independent assortment 

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. b and f

  2. a, d and f

  3. b, c and f

  4. b , c and e

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Correct Option: A

Successive exploitation of heterocyst depends upon the ______________.

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. Presence of heterotic effect in the hybrid

  2. Availability of male sterility

  3. Out crossing nature of the flower

  4. Heterotic effect and availability

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Correct Option: A

Triticale has been developed through cross between

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. Maize and Rye

  2. Maize and grass

  3. Rice and Rye

  4. Wheat and Rye.

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Correct Option: D

If mendel had studied the 7 traits using a plant with 12 chromosomes instead of 14 ,in what way this interpretation have been different 

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. He would have mapped the chromosomes

  2. He would have discovered blending or incomplete dominance

  3. He would not have discovered law of independent assortement

  4. He would have discovered sex linkage

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Correct Option: A

Choose the correct answer from the alternatives given.

Among the seven pairs of contrasting traits in pea plant as studied by Mendel, the number of traits related to flower, pod, and seed respectively were

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. 2, 2, 2

  2. 2, 2, 1

  3. 1, 2, 2

  4. 1, 1, 2

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Correct Option: A

Choose the correct answer from the alternatives given.


The colour based contrasting traits in seven contrasting pairs, studied by Mendel in pea plant were.

botany unravelling genetic mysteries experiments of mendel mendel's law of inheritance works of mendel

  1. 1

  2. 2

  3. 3

  4. 4

Show answer
Correct Option: C
Explanation:

The colour based contrasting traits studied by Mender in pea plant were pod colour,  i.e., green (dominant) and yellow (recessive), flower colour, i.e., violet (dominant) and white (recessive) and seed colour, i.e., yellow (dominant) and green (recessive).