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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

Which one of the following is correct sequence of stages of prophase 1 of meiosis
A Diakinesis diplotene pachytene leptotene zygotene
B Zygotene leptotene pachytene diplotene diakinesis
C Leptotene zygotene pachytene diplotene diakinesis
D Pachytene leptotene diplotene zygotene diakinesis
Correct Answer: Leptotene zygotene pachytene diplotene diakinesis
Interconversion of carbohydrates proteins and lipids in living cells are an example of____________?
A Coordinated catabolic activities
B Coordinated anabolic activities
C Both A and B
D Any one
Correct Answer: Both A and B
Non polar organic molecules are ___________ in water?
A Soluble
B Insoluble
C Partially soluble
D Depends upon condition
Correct Answer: Insoluble
In humans the number of tetrads formed during mitosis is___________?
A 23
B 46
C 0
D 4
Correct Answer: 0
The survival of an animal depends upon its ability to take some from its environment____________?
A Chemicals
B Hydrocarbons
C Organic molecules
D Inorganic molecules
Correct Answer: Organic molecules
The sequence of 3 bases on tRNA which is complementary to condon of mRNA is called____________?
A Gene
B Anticodon
C Code
D Codon
Correct Answer: Anticodon
Deficiency of which of the following causes chlorosis__________________?
A Nitrogen
B Magnesium
C Iron
D Both A and B
Correct Answer: Both A and B
Magnesium is present in which of the following__________________?
A Cytochromes
B ATP
C Chlorophyll
D Haemoglobin
Correct Answer: Chlorophyll
Dipeptides into amino acids are are converted through_____________?
A Amino peptidase
B Erypsin
C Pepsin
D Trypsin
Correct Answer: Erypsin
Carbohydrates, fats & proteins are essential for_______________?
A Metabolic processes of an organism
B Providing energy
C Formation of sturctures
D All of these
Correct Answer: All of these
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