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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

How many nucleosomes are found in helical coil of 30 nm chromatin fibre ____?
A 10
B 12
C 06
D 09
Correct Answer: 06
The frequency of a character is found to be increasing when __________?
A It is dominant
B It is recessive
C It is adaptable
D It is inheritable
Correct Answer: It is inheritable
The character which appears physically in an animal is __________?
A Genotype
B Phenotype
C Heterotype
D Morphozygous
Correct Answer: Phenotype
The haploid condition is found in _________?
A Amoeba
B Bacteria
C Ovum
D Zygote
Correct Answer: Zygote
The food conducting tissue of a plant is __________ ?
A Phloem
B Xylem
C Parenchyma
D Collenchyma
Correct Answer: Phloem
When the Left Ventricle in the human heart contracts, the blood moves to the_________ ?
A Brain
B Pulmonary Artery
C Aorta
D Lungs
Correct Answer: Aorta
Which part of the nervous system controls the activities of internal organs________?
A Spinal cord
B Cerebrum
C Cerebellum
D Medulla Oblongata
Correct Answer: Medulla Oblongata
Which of the following cells secrete insulin?
A Alpha cells
B Delta cells
C Nerve cells
D Beta cells
Correct Answer: Beta cells
In the human body, fats are stored in the__________?
A Epidermis
B Adipose tissue
C Liver
D Epithelium
Correct Answer: Adipose tissue
Blood does not clot in the blood vessels due to the presence of ___________?
A Thrombin
B Fibrinogen
C Heparin
D Prothrombin
Correct Answer: Thrombin
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