Explore topic-wise InterviewSolutions in .

Choose the odd one in each of the following :

(a) Oestrogen; progestrone; testosterone; prolactin.

(b) Ovary; fallopian tube; ureter; uterus.

(c) Seminiferous tubule; ovum; epididymis; sperm duct; urethra.

(d) Sperm; implantation; fertilisation; ovum; after birth.

A)what are methanogens?mention their significance?

B)classify bacteria based on the shape with examples?

Write the chemical reaction of aerobic and anaerobic respiration

Higher level of hormonal concentrations will cause

Among the mentioned human ancestors, the brain size was more than 1000 CC in:

The chromosomal no. of the sexually producing parents and their offspring is the same. Justify this statement .

Why are variations speeded up in sexual mode of reproduction? What are the advantages of this mode of reproduction?

In case of lack of oxygen, pyruvate is converted into E, the build-up of which causes F. Identify E and F.

Question 14
If the fossil of an organism is found in the deeper layers of earth, then we can predict that

(a) the extinction of organism has occurred recently.
(b) the extinction of organism has occurred thousands of years ago.
(c) the fossil position in the layers of the earth is not related to its time of extinction.
(d) time of extinction cannot be determined.

Indiscriminate disposal of plastic wastes can cause environmental pollution. Which of the following statements is/are true?

Which of the following is not a genetic disease in humans

What are the functions of nephron

Where is ozone layer positioned?

Our future height is stored in our genes?If yes,we can know in present?And we can grow more than it?

Name one variation in humans connected with ears.

What is the necessity of hormones over nerves?

Cell theory is not applicable to

Foliar transpiration includes _______.

The hormone involved in the regulation of calcium and phosphorus metabolism is secreted by the gland called

Where is the food made in a cactus?

Fill in the blanks choosing the best alternatives from the given options.
Psychological disorders (a)________ problems that (b) ________ the mental health of a person. These problems (c) ________ the behavioural pattern of the person. They (d) ________ a great amount of distress for not only the person (e) ________ from these disorders but also for the person’s near and dear ones.

The experimental set up show below is to show that ___ is necessary for photosynthesis.

Which of the following substances are not present in the initial filtrate of nephron?

The end-product of glycolysis is

The following image suggests the test done to confirm the necessity of ___ for photosynthesis.

Which of the following are properties for human RBC?

Which of the following is not true about the extracellular fluids?

Mention the main steps in the process of photosynthesis. Explain in BRIEF about each step.

Differentiate between arteries, veins and capillaries.

If a DNA sample contain 23.8% cytosine resedues, then amount of thymine present in the same DNA sample is

Match the following time spans with their actual phases in a eukaryotic cell cycle.

$\begin{array}{cc}\text{Table I}& \text{Table II}\\ \text{I) 10 hr}& \text{a. M Phase}\\ \text{II) 9 hr}& \text{b.}{G}_1\text{Phase}\\ \text{III) 4 hr}& \text{c. S Phase}\\ \text{IV) 1 hr}& \text{d.}{G}_2\text{Phase}\end{array}$

A plant is kept in the dark cupboard for about 48 hours before conducting any experiment on photosynthesis in order to _______________.

Which of the following substances is transported by phloem tissue?

In which of the following liquids is leaf boiled to remove chlorophyll from it?

How life originated on earth was experimentally shown by______.

Select the statement that describes the characteristics of genes.

(1) Proteins are never coded by DNA.

(2) Self-replicating materials are present in all living organisms as the main constituent of their genetic material.

(3) In an individual of a particular species, a specific gene is located on a particular chromosome.

(4) One chromosome can code one protein.