Principles of Inheritance and Variation · Question 51

Select the incorrect statement.

1. In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
2. Human males have one of their sex-chromosome much shorter than the other.
3. Male fruit fly is heterogametic
4. In male grasshoppers, 50\% of sperms have no sex-chromosome.

Which of the following pairs is wrongly matched?

1. Starch synthesis in pea : Multiple alleles
2. ABO blood grouping : Co-dominance
3. XO type sex determination: Grasshopper
4. T.H. Morgan : Linkage

Which of the following characteristics represent 'Inheritance of blood groups' in humans?

1. B, C and E only
2. A, B and C only
3. B, D and E only
4. A, C and E only

A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by

1. only daughters
2. only sons
3. only grandchildren
4. both sons and daughters

Select the correct statement :

1. Franklin Stahl coined the term “linkage”.
2. Punnett square was developed by a British scientist.
3. Spliceosomes take part in translation.
4. Transduction was discovered by S. Altman.

Thalassemia and sickle cell anemia 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. Thalassemia is due to less synthesis of globin molecules
3. Sickle cell anemia is due to a quantitative problem of globin molecules
4. Both are due to a quantitative defect in globin chain synthesis

The genotypes of a Husband and Wife are IAIB and IAi. Among the blood types of their children, how many different genotypes and phenotypes are possible?

1. 4 genotypes ; 3 phenotypes
2. 4 genotypes ; 4 phenotypes
3. 3 genotypes ; 4 phenotypes
4. 3 genotypes ; 3 phenotypes

A disease caused by an autosomal primary non-disjunction is :

1. Klinefelter's Syndrome
2. Down's Syndrome
3. Turner's Syndrome
4. Sickle Cell Anemia

Which one from those given below is the period for Mendel's hybridisation experiments ?

1. 1870 – 1877
2. 1857 – 1869
3. 1840 – 1850
4. 1856 – 1863

Among the following characters, which one was not considered by Mendel in his experiments on pea?

1. Stem-Tall or dwarf
2. Pod-Inflated or constricted
3. Trichomes-Glandular or non-glandular
4. Seed-Green or yellow