Home
Current Affairs January 2024

What is the correct answer?

4

"The substance of cells is living " was firs suggested by

A. Purkinje

B. Lamarck

C. Dutrochet

D. Dujardin

Correct Answer :

B. Lamarck


Related Questions

What is the correct answer?

4

There are 46 chromosomes in humans, of which

A. any 23 chromosomes are from father and remaining from the mother

B. the first 11 pairs and 'X' are from the father and next 11 pairs and 'Y' from the mother

C. the first 11 pairs and 'X' from mother and remaining from father

D. out of each pair one is received from the father and the other from the mother

What is the correct answer?

4

Extranuclear DNA is found in

A. chloroplast

B. ribosomes

C. endoplasmatic reticulum

D. golgi apparatus

What is the correct answer?

4

Chemical constitution of nucleus is

A. DNA and proteins

B. RNA and proteins

C. DNA, RNA and proteins

D. RNA arid DNA

What is the correct answer?

4

The organelles for fat synthesis are

A. glyoxisomes

B. lomasomes

C. spherosomes

D. lysosomes

What is the correct answer?

4

Park and Biggins receive credit for discovery of

A. oxisomes

B. quantosomes

C. lysosomes

D. microsomes

What is the correct answer?

4

Cell organelle which has electron transport system is

A. nucleus

B. centriole

C. nucleolus

D. mitochondria

What is the correct answer?

4

Nobel prize for RNA synthesis was awarded to

A. A. Kornberg

B. S.Ochoa

C. H. Khorana

D. Nirenberg

What is the correct answer?

4

Cells having large nuclei in proportion of cytoplasm are perhaps

A. dying

B. dehydrated

C. active

D. dividing

What is the correct answer?

4

The "chromosome theory of heredity" was given by

A. Sutton and Bateson

B. Bateson and Punnett

C. Sutton and Boveri

D. Waldeyer and Hofmeister

What is the correct answer?

4

Physical basis of life is

A. nucleus

B. cell

C. protoplasm

D. nutrition

What is the correct answer?

4

In electron microscope the source of light used is

A. sunlight

B. UV-light

C. far red

D. beam of electrons

What is the correct answer?

4

Cell membranes are composed mainly of

A. sugar and proteins

B. lipids and proteins

C. starch and lipids

D. sugar and lipids

What is the correct answer?

4

Which structure performs a similar function in both plant and animal cell

A. Ribosomes

B. Contractile vacuoles

C. Chloroplasts

D. Cell wall

What is the correct answer?

4

In the mitochondria, cytochromes are localised in

A. matrix

B. outer membrane

C. inner membrane

D. none of these

What is the correct answer?

4

The largest cell organelle is

A. nucleus

B. endoplasmic reticulum

C. chloroplast

D. mitochondria

What is the correct answer?

4

Carbohydrate is synthesized from fat within

A. lysosome

B. spherosome

C. glyoxysome

D. lomasome

What is the correct answer?

4

Another name for ligase is

A. joining enzyme

B. RNA polymerase

C. nuclease

D. none of these

What is the correct answer?

4

Intake of liquid food by formation of food vacuoles is called

A. pinocytocis

B. phagocytosis

C. absorption

D. imbibition

What is the correct answer?

4

In plant cell vacuole contains

A. water

B. cytoplasm

C. air

D. water and dissolved substance

What is the correct answer?

4

Electron microscope has revealed the presence of

A. ribosomes

B. chromosomes

C. chloroplast

D. leucoplast

What is the correct answer?

4

Nitrogenous bases of RNA are

A. uracil and adenine

B. thymine and uracil

C. uracil, adenine, guanine and cytosine

D. thymine, adenine, guanine and cytosine

What is the correct answer?

4

Hydroly tic enzymes are abundant in

A. peroxisomes

B. microsomes

C. lysosome

D. lomasome

What is the correct answer?

4

 The function of cristae in a mitochondrion is

A. electron transport and ATP synthesis

B. carbon assimilation

C. intake of o2

D. elimination of co2

What is the correct answer?

4

Cell theory was proposed by

A. M.J. Schleiden and Theodore Schwann in 1838 and 1839 respectively

B. M.J. Schleiden and Theodore Schwann in 1939 only

C. Theodore Schwann and M.J. Schleiden in 1938 only

D. T.J. Schleiden and M.J. Schwann in 1838 only.

What is the correct answer?

4

Ribosomes of plastids and mitochondria are

A. 55S to 70S

B. 80S

C. 40S

D. 60S

What is the correct answer?

4

The nucleus of a prokaryotic cell is represented by

A. a well-defined nuclear membrane

B. nucleolus only

C. double stranded circular DNA

D. single stranded DNA

What is the correct answer?

4

The photosynthetic units are known as

A. dictyosomes

B. quantosomes

C. microsomes

D. ribosomes

What is the correct answer?

4

The nucleus of a plant cell was discovered by

A. Robert Brown

B. Huxley

C. Virchow

D. Hammerling

What is the correct answer?

4

Sequence of nucleotides in a DNA strand is CAT TAG CAT CAT GAC, what will be the base sequence in complementary strand of RNA?

A. GUA AUC GUA GUA CUG

B. GTA ATC GAT GTA CTA

C. TAG ATG ATG GUA CUG

D. GTA ATG GTA GAT CTA

What is the correct answer?

4

Janus-green-B is used for staining

A. ribosomes

B. chloroplast

C. mitochondrion

D. all of these