The whole process of spermatogenesis takes about ______ days.

Each testis is covered by a fibrous layer _____

In the year ______    india is expected to become the largest country in population size ______

Expansion of the RCH is _____

PCR proceeds in three distinct steps governed by temperature, they are in order of

Gene which suppresses other genes activity but does not lie on the same locus is called as _____.

If haploid number in a cell is 18. The double monosomic and trisomic number will be _____.

Assertion (A): Gamma rays are generally use to induce mutation in wheat varieties.
Reason (R): Because they carry lower energy to non-ionize electrons from atom

Some of the characteristics of Bt cotton are ______.

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is ______.

Cryopreservation means it is a process to preserve plant cells, tissues or organs _____.

In soil water available for plants is ____.

Which of the following is / are not a natural ecosystem?

People’s movement for the protection of environment in Sirsi of Karnataka is ______.

The quickest method of plant breeding is _______.

Define Vivipary.

What is colostrum? Write its significance.

What is the function of seminal fluid?

What is criss-cross inheritance?

State any three goals of the human genome project.

What are interferons? Mention their role.

What is biological oxygen demand?

What are the three levels of biodiversity?

Write notes on the following:
a. Eutrophication
b. Algal Bloom

List out two sub-aerial stem modifications with example.

You are working in a biotechnology lab with a bacterium namely E.coli. How will you cut the nucleotide sequence? explain it.

‘Green algae are not likely to be found in the deepest strata of the ocean’. Give at least one reason.

Soil formation can be initiated by biological organisms. Explain how?

Discuss which wood is better for making furniture.

Give definitions for organic farming?

What is strobilation?

(i) Identify the animal
(ii) What is significant about the animal.

'A' and 'B' are the male & female sex cells respectively which look alike and performs similar functions. 'A' and 'B' fuse to form a new individual 'D'. Which type of gametic fusion does this represent? Give an example

What are Braxter-Hick's contractions?

Give an account on uterine wall layers.

Expand the following
a) ZIFT
b) ICSI

Name the anticodon required to recognize the following codons: AAU, CGA, UAU, and GCA.

Justify the role of microbes as a bio-fertilizer

Differentiate J and S shaped curve

Compare and Contrast the insitu and exsitu conservation. (or) What are the differences between in-situ and ex-situ conservation ?

“The endosperm of angiosperm is different from gymnosperm”. Do you agree. Justify your answer.

“Endothecium is associated with dehiscence of anther” Justify the statement

How will you identify a vector ?

Shape of pyramid in a particular ecosystem is always different in shape. Explain with example.

How do sacred groves help in the conservation of biodiversity?

Given an account on following terms.
(a) Hologamy
(b) Isogamy
(c) Anisogamy
(d) Merogamy
(e) Paedogamy

Explain about breast self Examination and Early diagnosis of Cancer.

What are IUD's? Explain its way of functioning. Also describe their types.

List the salient features of genetic code.

How does Neanderthal man differ from the modern man in appearance?

Explain about the objections to Darwinism.

In north eastern states, the jhum culture is a major threat to biodiversity – substantiate.

Write a note on
i) Protected areas,
ii) Wild life sanctuaries.

Enumerate the characteristic features of Entomophilous flowers

With a suitable diagram explain the structure of an ovule.

Give an account of various types of parasitism with examples.

List out any five morphological adaptations of halophytes.

List out the new breeding techniques involved in developing new traits in plant breeding.

What are psychoactive drugs? Add a note Marijuana and Opium