Free Principles Of Inheritance And Variation (Daily Quiz: 5) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

When two unrelated individuals or lines are crossed, the performance of $F_1$ hybrid is often superior to both its parents. This phenomenon is called

(a) Splicing

(b) Transformation

(c) Metamorphosis

(d) Heterosis

Question-2

Mendel's principle of segregation was based on the separation of alleles in the garden pea during

(a) Embryonic development

(b) Pollination

(c) Seed formation

(d) Gamete formation

Question-3

Why Mendel's work was not recognized till 1900?

(a) His concept of factor (stable and discrete units that control expression of trait) was not accepted by his contemporaries.

(b) His work could not be widely published.

(c) His approach of using mathematics to explain biological phenomenon was totally new and unacceptable by many of the biologists of his time.

(d) All of these

Question-4

The recessive genes located on X-chromosome in humans are always

(a) sub-lethal

(b) lethal

(c) expressed in males

(d) expressed in females

Question-5

Genetic map is one that

(a) establishes the various stages in gene evolution

(b) establishes sites of the genes on a chromosome

(c) shows the distribution of various species in a region

(d) show the stages during the cell division