Genetics

11. Mendel is known as [S.S.C. Online CHSL (T-I) 15.01.2017 (Shift-II)]

(a) Father of Physiology
(b) Father of Geology
(c) Father of Genetics
(d) Father of Biology

Correct Answer: (c) Father of Genetics

Solution:Father of Physiology - Claude Bernard
Father of Geology - James Hutton
Father of Genetics - Gregor Johann Mendel
Father of Biology - Aristotle

12. Who among the following is called the 'Father of Genetics'? [S.S.C. Online C.P.O.S.I. (T-I) 3.01.2017 (Shift-I)]

(a) Darwin
(b) Mendel
(c) Lamarck
(d) De Breeze

Correct Answer: (b) Mendel

Solution:

List- I	List-II
Father of Physiology	Claude Bernard
Father of Geology	James Hutton
Father of Genetics	Gregor Johann Mendel
Father of Biology	Aristotle

13. Which of the following scientists is also known as the Father of Biology? [S.S.C. Online CHSL (T-I) 24.01.2017 (Shift-II)]

(a) Herbert Spencer
(b) Aristotle
(c) Lamarck
(d) Darwin

Correct Answer: (b) Aristotle

Solution:

List- I	List-II
Father of Physiology	Claude Bernard
Father of Geology	James Hutton
Father of Genetics	Gregor Johann Mendel
Father of Biology	Aristotle

14. Who among the following is considered the ‘Father of Biology’? [S.S.C. Online C.P.O.S.I. (T-I) 3.01.2017 (Shift-II) S.S.C. Online C.P.O.S.I. (T-I) 1.01.2017 (Shift-II)]

(a) Darwin
(b) Aristotle
(c) Heckle
(d) Edward Jenner

Correct Answer: (b) Aristotle

Solution:

List- I	List-II
Father of Physiology	Claude Bernard
Father of Geology	James Hutton
Father of Genetics	Gregor Johann Mendel
Father of Biology	Aristotle

15. Which plant did Gregor Mendel use for hybridization? [S.S.C. Online Stenographer 13.09.2017 (Shift-I)]

(a) Potato
(b) Pea
(c) Beet
(d) Apple

Correct Answer: (b) Pea

Solution:Gregor Mendel used the pea plant for hybridization or crossbreeding. This is now referred to as the law of Mendelian inheritance. He worked on 7 characteristics of the pea plants, which include seed shape and color, flower position and colour, plant height, pod shape and colour.

16. Which of the following branch of biology deals with the study of heredity and variation? [S.S.C. Online C.P.O.S.I. (T-I) 1.01.2017 (Shift-II)]

(a) Microbiology
(b) Immunology
(c) Genetics
(d) Entomology

Correct Answer: (c) Genetics

Solution:The branch of biology that deals with the study of heredity and variation are called Genetics. Palaeontology is the branch of biology that deals with fossils of animals and plants that lived up to billions of years ago. Evolution is the change in the characteristic of living organisms over a generation. Ecology is the branch of biology that deals with the interaction between non-living and living components in the environment. Thus, the correct answer is C.

17. What is the transplantation of graft between genetically identical individuals? [S.S.C. Online Graduate Level (T-I) 8.09.2016 (Shift-II)]

(a) Autograft
(b) Isograft
(c) Allograft
(d) Xenograft

Correct Answer: (b) Isograft

Solution:An Isograft is a graft of tissue between two individuals who are genetically identical (i.e., monozygotic twins). Transplant rejection between two such individuals virtually never occurs, making isografts particularly relevant to organ transplantations; patients with organs from their identical twins are incredibly likely to receive the organs favourably and survive.

18. DNA shows Hyperchromicity on? [C.P.O. S.I. 6.06.2016 (Shift-I)]

(a) Heating
(b) Cooling
(c) Crystallizing
(d) Replication

Correct Answer: (a) Heating

Solution:When a DNA solution is heated enough, the double-stranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.

19. Who discovered the double helical structure of DNA? [S.S.C. Online MTS (T-I) 5.01.2017 (Shift-I)]

(a) Rosalind Franklin
(b) Maurice Wilkins
(c) James Watson and Francis Crick
(d) Freidrich Meischer

Correct Answer: (c) James Watson and Francis Crick

Solution:James Watson and Francis Crick presented the ‘double helix model’ of DNA, while Friedrich Mischer discovered DNA.

20. Which of the following is a natural flame retardant? [S.S.C. Online Graduate Level (T-I) 6.03.2020 (Shift-I)]

(a) Skin
(b) DNA
(c) Flowers
(d) RNA

Correct Answer: (b) DNA

Solution:DNA’s natural structure makes it an ideal intumescent (substance that swells when heated) fire retardant-it has a backbone of sugar and phosphate and a nitrogen base. Therefore, the researchers chose to test its ability as a fire retardant coating on a normally highly flammable cotton sample.

Genetics

11. Mendel is known as [S.S.C. Online CHSL (T-I) 15.01.2017 (Shift-II)]

12. Who among the following is called the 'Father of Genetics'? [S.S.C. Online C.P.O.S.I. (T-I) 3.01.2017 (Shift-I)]

13. Which of the following scientists is also known as the Father of Biology? [S.S.C. Online CHSL (T-I) 24.01.2017 (Shift-II)]

14. Who among the following is considered the ‘Father of Biology’? [S.S.C. Online C.P.O.S.I. (T-I) 3.01.2017 (Shift-II) S.S.C. Online C.P.O.S.I. (T-I) 1.01.2017 (Shift-II)]

15. Which plant did Gregor Mendel use for hybridization? [S.S.C. Online Stenographer 13.09.2017 (Shift-I)]

16. Which of the following branch of biology deals with the study of heredity and variation? [S.S.C. Online C.P.O.S.I. (T-I) 1.01.2017 (Shift-II)]

17. What is the transplantation of graft between genetically identical individuals? [S.S.C. Online Graduate Level (T-I) 8.09.2016 (Shift-II)]

18. DNA shows Hyperchromicity on? [C.P.O. S.I. 6.06.2016 (Shift-I)]

19. Who discovered the double helical structure of DNA? [S.S.C. Online MTS (T-I) 5.01.2017 (Shift-I)]

20. Which of the following is a natural flame retardant? [S.S.C. Online Graduate Level (T-I) 6.03.2020 (Shift-I)]

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