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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

Human skin colour is _________?

A Multifactorial
B Pleiotropic
C Polygenic
D Epistatic
Correct Answer: Polygenic

Mendal studied _________ traits of pisum sativum?

A Six
B Seven
C Eight
D Nine
Correct Answer: Seven

AIDS is caused by ________ virus?

A HAV
B HIV
C Rabies
D Pigs
Correct Answer: HIV

HIV is a ________ virus?

A SsRNA
B DsRNA
C SsDNA
D DsDNA
Correct Answer: SsRNA

PH of fresh Saliva?

A 6
B 7
C 8
D 0
Correct Answer: 8

Terrestrial plants carry out ________ of total photosynthesis on the earth?

A 10%
B 20%
C 50%
D None of these
Correct Answer: 10%

_________ stimulates the production of gastric juice in the stomach:

A Gastrin
B Enterokinase
C Rennin
D None of these
Correct Answer: Gastrin

One of the reasons why some people cough while eating a meal may be due to the improper movement of _______ :

A Larynx
B Diaphram
C Epiglottis
D None of these
Correct Answer: Epiglottis

The small intestine has three parts. The first part is called________?

A Duodenum
B Oesophagus
C Larynx
D None of these
Correct Answer: Duodenum

Which of the following cell organelles does not contain DNA?

A Nucleus
B Lysosomes
C Chloroplast
D None of these
Correct Answer: Lysosomes
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