Biology Test - ...

Which of the following is not an RNA virus?

Choose the options which describe the features of region of meristematic activity:

I. Few millimetres above the root cap

II. Cells divide repeatedly

III. Cells are small and thin walled

IV. Cells undergo rapid elongation and enlargement

V. Root hairs develop from this region

Direction: For the Assertion (A) and Reason (R) below, choose the correct alternative 

Assertion : "The Biological Species" concept helps us to ask how species are formed.

Reason : The concept of biological species focuses our attention on the question of how reproductive isolation comes about.

The pseudostratified epithelium is present in:

During the process of evolution, development of trichogyne of algae could be traced as:

Turner's syndrome is characterized by chromosomes

The function of cerebrospinal fluid does not include:

Match the column-I and column-II

Direction: Which of the following statements are correct regarding the Dusky gopher frog?

1) It is is a critically endangered species of frog in the family Ranidae.

2) It is endemic to the southern United States.

Select the correct answer from the codes given below:

The lifespan of sperm fertility is: