Which of the following is not a postulate of cell theory?

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Important Questions on The Fundamental Unit of Life

EASY

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

In typical cell divisions by mitosis and meiosis, all of the following contributes to genetic variation except :

MEDIUM

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

An exception to cell theory is

EASY

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

Chromosomes are made up of

EASY

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

Match List I with List II and select the correct answer using the code given below the lists:

List I List II

(Cell Organelle) (Function)
A. Mitochondria    $1 .$ Photosynthesis
B. Chloroplast    $2 .$ Protein synthesis
C. Ribosomes $3 .$ Intracellular Digestion
D. Lysosomes    $4 .$ ATP formation

EASY

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

DNA synthesis occurs in which stage of cell cycle.

MEDIUM

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

The process of copying genetic information from one strand of DNA into RNA is termed as

MEDIUM

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

Which of the following statement is correct

HARD

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

Which one of the following cell organelles is known as 'suicide bags' of a cell?

EASY

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

In meiosis, each of the four daughter cells have one set of chromosomes. Due to the randomness of the process of chromosome separation in meiosis, a larger number of chromosome combinations can form gametes. How many such chromosome combinations in the gametes are possible in case of humans, assuming there is no crossing-over taking place?

MEDIUM

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

Which of the following is not found in prokaryotes except?

MEDIUM

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells

EASY

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

What is the number of chromosomes in an individual with Turner's syndrome?

MEDIUM

Science>Biology>The Fundamental Unit of Life>Introduction to a Cell

Most viruses that infect plants possess ___.