

(b) At different loci on the same chromosomeĢ3. (d) The two genes are located in two different chromosomes (c) Both of the characters are controlled by more than one gene (b) The two genes are linked and present on the same chromosomne (a) Chromosomes failed to separate during meiosis In a test cross involving F1 dihybrid flies, more parental type offspring were produced than the recombinant type offspring. Which condition of zygote cell will lead to birth of a normal human female child?Ģ0. (d) XO sex chromosomes determine male sex in GrasshopPperġ9. (c) ZZ sex chromosomes determine female sex in birds (b) XX sex chromosomes produce male in Drosophila Which condition describes the sex correctly? What are the chances that this child would be colour blind_ġ8. They have their first child as a daughter. A normal visioned man whose father was colour blind, marries a woman whose father was also colour blind.

If both parent are carriers for thalassemia, which is an autosomal recessive disorders, what are the chances of pregnancy resulting in an affected child?ġ7. (d) is able to produce children with normal husbandġ6. What percentage of male children of this couple would be colour blind?ġ5. A man whose father was colour blind marries a woman who had a colour blind mother and normal father. The movement of a gene from one linkage group of another is called_ġ4. Which is the most common mechanism of genetic variation in the population of sexually reproducing organism?ġ3. (d) 1:2:1: Tall homozygous: lall heterozygous: Dwarfġ2. (a) 1:2:1:: Tall heterozygous: lall homozygous: Dwarf When the F1 plants were selfed, the resulting genotype were in the ratio of_ A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. Among the following characters, which one was not considered by Mendel in his experiments ofġ1. Which one from those given below is the period for Mendel's hybridisation experiments?ġ0. Among the blood types of their children, how man different genotypes and phenotypes are possible :ĩ. The genotypes of a Husband and Wife are IAIB and IAi. Read : MCQ on Sexual Reproduction in Flowering PlantsĨ. Which of the following characteristics represent "Inheritance of blood groups" in humans? (c) Franklin Stahl coined the term "linkage". (6) Punnet square was developed by a British scientist. (a) Spliceosomes take part in translation (d) Sickle cell anaemia 1s due to a quantitative (c) Thalassemia is due to less synthesis of globin molecules (b) Both are due to a quantitative defect in globin (a) Both are due to a qualitative defect in globin Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Read: NCERT Class 11 Biology Chapterwise MCQĤ. A disease caused by autosomal primary non-disjunction is_

(c) Starch synthesis in Pea: Multiple alleles.ģ. (a) XO type Sex Determination: Grasshopper Which of the following pairs is wrongly matched_ A woman has an X-linked condition on one of her X chromosomes.
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MCQ Questions on Principle of Inheritance and Variation Pdf (Previously Asked Questions in NEET) :ġ.
