Biology Questions

Q:

Lysogeny can result in all of the following except

A) Acquisition of new characteristics by the host cell B) Transduction of specific genes
C) Immunity to reinfection by the same phage. D) Immunity to reinfection by any phage
 
Answer & Explanation Answer: D) Immunity to reinfection by any phage

Explanation:

Lysogeny can result in all of the following except Immunity to reinfection by any phage. Lysogeny means phage DNA is incorporated in Host cell DNA. 

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
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2 1967
Q:

_______ are chlorophyll-bearing, simple, thalloid, autotrophic and largely acquatic (both fresh water and marine) organisms.

A) Pteridophytes B) Bryophytes
C) Algae D) Gymnosperms
 
Answer & Explanation Answer: C) Algae

Explanation:
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Filed Under: Biology
Exam Prep: Bank Exams

2 1966
Q:

Drugs that combat depression work by

Answer

Antidepressants work by stopping the breakdown of norepinephrine, dopamine, and serotonin. They're more difficult for people to take than most other antidepressants because they interact with prescription drugs, nonprescription drugs, and some foods.


 

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Subject: Biology Exam Prep: AIEEE , Bank Exams
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2 1960
Q:

A living part of the organisms environment is known as

A) Abiotic Factor B) Habitat
C) Biotic Factor D) Non­living factor
 
Answer & Explanation Answer: C) Biotic Factor

Explanation:
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Filed Under: Biology
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1 1960
Q:

Which organelle performs cellular respiration?

A) mitochondria B) cytolasm
C) chloroplasts D) All of the above
 
Answer & Explanation Answer: A) mitochondria

Explanation:
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Filed Under: Biology
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2 1958
Q:

Which body part will be effected with the disease leprosy?

A) blood B) legs
C) skin D) brain
 
Answer & Explanation Answer: C) skin

Explanation:

Leprosy is the disease which effects skin.

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3 1957
Q:

Where is pain perceived in the brain?

Answer

At first, the intensity of the pain stimuli is sent through the nerve fibres to the brain parts that are limked with the pain perception such as anterior cingulate cortex.

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Subject: Biology Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

5 1947
Q:

Which molecule is always single stranded?

A) RNA B) DNA
C) Mitochondria D) Cellulose
 
Answer & Explanation Answer: A) RNA

Explanation:

RNA is a single-stranded molecule in many of its biological roles and consists of a much shorter chain of nucleotides.

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4 1947