Gentics and Evoloution MCQ question and answer with solution | Biology Gk MCQs

DNA differs from RNA in having nitrogenous base

The formula for 'coincidence' is

Chromosomes consist of

According to which hypothesis, only the first two positions of a triplet codon on mRNA have a precise pairing with the bases of the tRNA anticodon?

Consider the following statements.
1. The smallest RNA is t RNA.
2. The most abundant RNA of cell is r RNA.
3. DNA can be formed over RNA through reverse transcriptase.
Which of the statements given above are false?

What is the chromosome number in it human ovum?

A triplet or three-letter code was first suggested by

Consider the following statements regarding evolution and choose the correct answer:
1. The different divisions of algae have evolved from bacterial ancestors, probably from the members of autotrophic bacteria
2. The blue-green algae are the earliest plants known from the fossil record
3. The bryophytes have become differentiated into liverworts, hornworts and mosses which have further developed progressive types of plants
4. The earliest and primitive tracheophytes have succeeded in colonising the land

Each strand of DNA consists of alternating molecules of deoxyribose which is

The distance represented by 100 per cent crossover between two genes is known as