In humans, the dominance relationship between the A and B alleles of ABO blood group gene is an example of

(1) complete dominance.

(2) incomplete dominance.

(3) codominance.

(3) epistasis

 

Subtopic:  Dominance Deviation from Mendel: 2 |
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One of the Mendel's pure strains of pea plants had green peas. How many different types of eggs could such a plant produce with regard to pea color?

1. 1

2. 2

3. 4

4. 8

Subtopic:  Monohybrid Cross: 1 |
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A woman receives her X chromosomes from:

1. Her mother only

2. Her father only

3. Both her mother and father 

4. Mitochondria of mother only

 

Subtopic:  Sex Determination |
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The insertion or deletion of a base pair into the genetic code will cause a frame shift mutation unless the number of base pairs inserted or deleted is:

(1) One

(2) Two

(3) three

(4) Ten

Subtopic:  Genetic Code: II | Genetic Code |
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A gene showing codominance has

(1) one allele dominant on the other

(2) alleles tightly linked on the same chromosome

(3) alleles that are recessive to each other

(4) both alleles independently expressed in the heterozygote

Subtopic:  Dominance Deviation from Mendel: 2 |
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In his classic experiments on pea plants, Mendel did not use

(1) seed colour

(2) pod length

(3) seed shape

(4) flower position

Subtopic:  Introduction to Genetics: 2 |
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NEET - 2015
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How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?

(1) Five

(2) Six

(3) Eight

(4) Seven

Subtopic:  Introduction to Genetics: 2 |
 95%
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NEET - 2015
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Which one from those given below is the period of Mendel's hybridisation experiments?

(1) 1856 - 1863

(2) 1840 - 1850

(3) 1857 - 1869

(4) 1870 - 1877

Subtopic:  Introduction to Genetics: 2 |
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Among the following characters, which one was not considered by Mendel in his experiments on pea?

(1) Stem - Tall or Dwarf

(2) Trichomes - Glandular or Non-glandular

(3) Seed - Green or Yellow

(4) Pod - Inflated or Constricted

Subtopic:  Introduction to Genetics: 2 |
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NEET - 2017
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Thalassemia and sickle-cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement.

(1) Both are due to a qualitative defect in globin chain synthesis

(2) Both are due to a quantitative defect globin chain synthesis

(3) Thalassemia is due to less synthesis of globin molecules

(4) Sickle-cells anaemia is due to a quantitative problem of globin molecules

Subtopic:  Mendelian Disorders: Thalassemia |
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