Explore topic-wise InterviewSolutions in .

The process of duplication of genetic material is observed in interphase (or early prophase). The particular or specific stage of the eukaryotic cell cycle during which this occurs is termed the -

The pre-historic man who gave a proper burial to the dead for the first time was

Which of the following is known as the energy currency of cells in biology ?
(a) DTP
(b) PUP
(c) ATP
(d) DDT

_______is the structural and functional unit

It is a surprising fact that plants don't need a blood like fluid to transport food and water. Trees use a straw like mechanism to pull water up the tips of trees. This pull of water in trees is created by a phenomenon known as______.

The number of nuclei involved in double fertilisation are

The primordial atmosphere of the primitive earth contained the following substances :

The three principles of Mendelism are_______.

The pollen grains are formed by __________ division?

Define life process.

How do organisms, whether reproduced asexually or sexually maintain constant chromosome numbers throughout several generations?

The practice of making the body resistant to a particular disease is called_________.

_____are the only mammals that are capable of flight.

Which of the following is a deadly poison?

What is/are the end product(s) of fat digestion?

What are carbon credits?

______________ detect environmental signals and convey this information to the central nervous system, _____________ convey signals from one neuron to another, and ___________ convey signals from the central nervous system to effector organs.

What is the scientific name of the sensitive plant?

The honey bee produces honey. In terms of food chain , is the honey bee a producer or consumer ?

Chromosome theory of inheritance was proposed by

'Respiration is a vital function of the body'. Justify. [3 MARKS]

(a) Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
(b) Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
(c) What is made in (i) anther, and (ii) ovary, of a flower ?

Identify the labelled parts in the given figure of a dicot embryo.

Which blood vessel does not carry any carbon dioxide ?
(a) pulmonary artery
(b) vena cava
(c) hepatic vein
(d) pulmonary vein

How does a haploid nucleus differ from a diploid nucleus of the same species?

Rate of diffusion across the cell membrane depends on which of the following factors?

Who proposed the “Theory of Organic Evolution”?

Question 1
The kidneys in human beings are a part of the system for

(a) Nutrition
(b) Respiration
(c) Excretion
(d) Transportation

Which all are the signs of hyperglycemia?

The packing cells between the coils of seminiferous tubules are better known as ___

In rare circumstances, death of the foetus might occur when which of the below combinations of parents procreate?

Origin of life on primitive Earth occurred in the air. True or false?

Traits of organism are controlled and regulated by

What are functions of-:

1. Fore brain

2. Mid brain

3. Hind brain

How is calcium metabolism associated with biological magnification in birds?

Match List I with List II and select the correct answer:

Which of the following are metabolic wastes of protein metabolism?

The root system in a plant is well developed

In the surgical method of contraception in males, which of the following structures are ligated or cut off?

___ is a milk product that contains active bacteria.

Which of the following is a disease that occurs in the absence of the hormone insulin in our body?

The total root water uptake is exactly equal to ____________

Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution, only mutation leads to speciation.

Directions:- The following item consist of two statements, one labelled as ‘Assertion A’ and the other labelled as ‘Reason R’. You are to examine these two statements carefully and decide if the Assertion A and the Reason R are individually true and if so, whether the Reason is a correct explanation of the Assertion. Select your answers to these items using the codes given below and mark your answer sheet accordingly.

Assertion (A): “DNA Finger printing” has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.

Reason (R): Trace evidences such as hairs, saliva and semen are adequate for DNA analysis.

What is Noradrenaline ? Explain with an example ?

Name two organisms which are now extinct and studied from their fossils.

___ lead to total chaos, huge loss of life and property

Blood vessels that connect arteries to veins are called:

Stems are :

(a) positively geotropic and negatively phototropic

(b) positively geotropic and positively phototropic

(c) negatively geotropic and positively phototropic

(d) negatively phototropicand positively geotropic