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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

The discease in which transmembrane carrier for the chloride ion is not produced is__________?
A Hyperchloesterolemia
B Cystic fibrosis
C Severe combined immunodeficiency syndrome
D AIDS
Correct Answer: Cystic fibrosis
There are mainly __________ types of tRNA?
A 170
B 20
C 25
D 15
Correct Answer: 20
Which conjegated molecules play important role in gene expression___________?
A Glycolipids
B Glycoproteins
C Nucleohistones
D None of these
Correct Answer: Nucleohistones
A genome is___________?
A Appearance of an individual
B Genetic basis of few characters
C Full set of genes of an individual
D All of these
Correct Answer: Full set of genes of an individual
rRNA constitutes ____________% of the total cellular RNA?
A 3-4 %
B 10-20%
C 80%
D 90%
Correct Answer: 80%
Genes will not be found in gene pairs in the_____________?
A Muscle cell of worm
B Uterine cells of dog
C Sperm cells of frog
D Guard cells of leaf
Correct Answer: Sperm cells of frog
Most of the cellular secretions are ________ in nature?
A Glycolipids
B Glycoproteins
C Nucleohistones
D Proteins
Correct Answer: Glycoproteins
Which one of the following stage preceeds mitosis during cell cycle?
A G1 phase
B S phase
C G2 phase
D M phase
Correct Answer: G2 phase
Golden algae are also known as___________?
A Chrysophyta
B Phaeophyta
C Pyrrophyta
D Rhodophyta
Correct Answer: Chrysophyta
Complex specialized flagellates living symbiotically in the gut of termites are___________?
A Trichonymphas
B Trypanosoma
C Euglena
D Radiolarians
Correct Answer: Trichonymphas
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