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Which of the following is not a component of the filtration membrane of kidney?

With respect to the assertion and reason given, choose the correct answer.

Assertion [A]: During secretory phase, low levels of progesterone inhibit the production of FSH.

Reason [R]: As long as progesterone levels are low, the endometrium is maintained and no new follicles are stimulated.

Type of placenta present in humans is:

The enzyme nitrogenase is a

Which among the following are non-organised endocrine glands?

A _________ is a sub-aerial stem modification with a long internode.

Arrange the organisms in ascending order based on the number of offsprings produced after asexual reproduction?

1) Euglena 2) Plasmodium 3) Hydra 4) Chlamydomonas

Consider the following characteristics:

i) Highly organized

ii) Display homeostasis

iii) Reproduce

iv) Take energy from the environment and transform it

Which of the character(s) is/are common to a cell and a vacuum cleaner?

Nepenthes belongs to the category of

Why is vegetative reproduction also considered as a type of asexual reproduction?

Look at the following structure of a nucleotide, and identify the three labelled parts:

Match the following columns.

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A}& \text{Zeatin}& 1& \text{Flowering hormone}\\ \text{B}& \text{Florigen}& 2& \text{Synthetic auxin}\\ \text{C}& \text{IAA}& 3& \text{Cytokinin}\\ \text{D}& \text{NAA}& 4& \text{Natural auxin}\end{array}$

Which of the following adaptations of seeds is not advantageous to angiosperms?

Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?

Elements that are required by plants for chlorophyll synthesis are

The function of tRNA is_________

Stolon is a type of vegetative propagation that includes which of the following?

Most of the mineral salts in soil enter roots by the process of

Which one of the following is correct statement regarding the particular psychotropic drug specified?

What is apoptosis?

Which among the following organisms lacks a cell wall throughout its life?

_________is the vital link that ensures continuity of species between organisms of one generation and the next.

Which of the following statements best links the two given images?

Image 1

Image 2

Which two processes together constitute the M phase of the cell cycle?

The cervical and the lumbar vertebrae form an outward curve, which is called (i)_______, while the thoracic and sacral vertebrae form an inward curve called (ii)_______.

Raghav kept a plant in a dark room for a week. The leaves started to look white and waxy. His mother advised him to keep the plant in a place where there was light directly falling on the plant. So he replaced the plant on the window sill where there was direct sunshine. The leaves turned green again. Which of these organelles do you credit for this change?

If you cut the tip of the root or a shoot, what would happen?

After ovulation, if egg is not fertilized the corpus luteum degenerates to form

Which of the following methods can be used to obtain a definitive diagnosis of type I insulin–dependent diabetes?

Evolutionary convergence is development of

Which of the following is the main activating factor of aldosterone secretion during periods of dehydration?

These belong to the category of primary consumers:

Label x, y, and z in a sarcomere

What is the correct order in which the factors of clotting are affected in order for blood to clot?

Angiosperms differ from gymnosperms in having:

Respiratory centres of the brain are located in

Which of the following are true for the immune system?

Diatomaceous earth is used in