HomeMock TestState PCSRailwaySSCHSSCDSSSBRO/AROUPSC

ZOOLOGY MISCELLANEOUS (Part-I)

📆 November 7, 2024

Total Questions: 42

1. At which stage in its life-cycle does the silkworm yield the fiber of commercial use? [S.S.C. Online Graduate Level (T-I) 3.09.2016 (Shift-II)]

Correct Answer: (c) Pupa
Solution:In the pupa stage, a weave is netted around by the silkworm to hold itself. After that it swings its head, spinning a fibre made of a protein and becomes a silk fibre. Several caterpillars form a protective layer around pupa and this covering is known as the cocoon.

2. A BT seed has also been developed for which of the following? [S.S.C. Online C.P.O.S.I. (T-I) 20.01.2017 (Shift-I)]

Correct Answer: (c) Maize
Solution:BT seed has been developed for cotton. BT cotton is a genetically modified organism (GMO) cotton variety, which produces an insecticide to bollworm. BT cotton increases yield of cotton due to effective control of three types of bollworms, viz. American, Spotted and Pink bollworms.

3. The name of first mammal clone sheep is ________. [S.S.C. Online CHSL (T-I) 30.01.2017 (Shift-III)]

Correct Answer: (b) Dolly
Solution:Dolly was a female domestic sheep, and the first animal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute, based near Edinburgh. She was born on 5 July, 1996 and died from a progressive lung disease 5 months before her seventh birthday. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore, proved that a cell taken from a specific part of the body could recreate a whole individual.

4. Dolly, the first cloned living being created at Roslin Institute in Scotland was a [S.S.C. Online Graduate Level (T-I) 12.06.2019 (Shift-II)]

Correct Answer: (c) Sheep
Solution:Dolly was a female domestic sheep, and the first animal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute, based near Edinburgh. She was born on 5 July, 1996 and died from a progressive lung disease 5 months before her seventh birthday. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore, proved that a cell taken from a specific part of the body could recreate a whole individual.

5. Dolly was an example of a typical [S.S.C. Online C.P.O.S.I. (T-I) 2.01.2017 (Shift-I)]

Correct Answer: (b) Sheep
Solution:Dolly was a female domestic sheep, and the first animal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute, based near Edinburgh. She was born on 5 July, 1996 and died from a progressive lung disease 5 months before her seventh birthday. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore, proved that a cell taken from a specific part of the body could recreate a whole individual.

6. What is the name of the first mammal clone (sheep)? [S.S.C. Online Constable GD 12.02.2019 (Shift-II)]

Correct Answer: (c) Polly
Solution:Dolly was a female domestic sheep, and the first animal to be cloned from an adult somatic cell, using the process of nuclear transfer. She was cloned by Ian Wilmut, Keith Campbell and colleagues at the Roslin Institute, based near Edinburgh. She was born on 5 July, 1996 and died from a progressive lung disease 5 months before her seventh birthday. The cell used as the donor for the cloning of Dolly was taken from a mammary gland, and the production of a healthy clone therefore, proved that a cell taken from a specific part of the body could recreate a whole individual.

7. The Scientists from China have successfully cloned which animal for the first time? [S.S.C. Online CHSL (T-I) 6.03.2018 (Shift-II)]

Correct Answer: (c) Monkey
Solution:The Scientists from China successfully cloned monkey for the first time in January 2018. Two long-tailed and identical macaques named Hua Hua and Zhong Zhong were born to become the first primates to be cloned from a non-embryonic cell.

8. In April 2019, scientists in ________ produced the world’s first 3D printed heart using human tissue. [S.S.C. Online Graduate Level (T-I) 4.03.2020 (Shift-I)]

Correct Answer: (a) Israel
Solution:Israeli scientists produced the world’s first 3D-printed heart using human tissue. Professor Tal Dvir, who led the project, says the miniature organ was made with a patient’s own cells, describing it as a “major medical breakthrough”. His team at Israel’s Tel Aviv University plans to transplant the hearts into animals in a move they hope will advance possibilities for human transplants.

9. What is the process called by which genetically identical individuals can be produced? [SSC Online Constable GD 12.02.2019 (Shift-II)]

Correct Answer: (b) Cloning
Solution:Reproductive cloning is defined as the deliberate production of genetically identical individuals. Each newly produced individual is a clone of the original. Monozygotic (identical) twins are natural clones. Clones contain identical sets of genetic material in the nucleus—the compartment that contains the chromosomes—of every cell in their bodies. Thus, cells from two clones have the same DNA and the same genes in their nuclei.

10. Name the respiratory organs of insects [S.S.C. Online CHSL (T-I) 17.01.2017 (Shift-I)]

Correct Answer: (d) Trachea
Solution:The respiratory organ of the insects consists of a system of air-filled tubes, called the tracheae, which are in most cases in open connection with the outside air through openings in the body wall, the spiracles.
Home  | Mock Test  | State PCS  | Railway  | SSC  | HSSC  | DSSSB  | RO/ARO  | UPSC  | 
© 2024 Mock Test 365 | All Rights Reserved