(a) mRNA
(b) tRNA
(c) rRNA
(d) gRNA
Answer- (b) tRNA
Category: Biology Second Paper
Circular DNA is found in which? [HSC C B 2023]
(a) Nucleus
(b) Ribosome
(c) Lysosomes
(d) Mitochondria
Ans- (d) Mitochondria
Which genetic code provides the stop signal for translation? [HSC C B 2023]
(a) AUG
(b) UAA
(c) UUC
(d) CUU
Answer- (b) UAA
The subunits of 80s ribosome are – [HSC C B 2023]
(a) 60s and 40s
(b) 50s and 30s
(c) 60s and 20s
(d) 50s and 40s
Answer- (a) 60s and 40s
In which organ does the granum exist? [HSC C B 2023]
(a) Nucleus
(b) Mitochondria
(c) Chloroplast
(d) Ribosome
Answer- (c) Chloroplast
How many nitrogen bases are there in an anticodon? [HSC C B 2023]
(a) 2
(b) 3
(c) 4
(D) 6
Answer- (b) 3
Glycocalyx is composed of which elements? [HSC J B 2023]
(a) Glycolipids and glycoproteins
(b) Glycolipids and enzymes
(c) Lipids and carboxylic acids
(d) Lipids and cholesterol
Ans- (a) Glycolipids and glycoproteins
Which nitrogenous base is only attached to the ribosome? [HSC J B 2023]
(a) Adenine
(b) Guanine
(c) Thymine
(d) Uracil
Answer- (d) Uracil
Stop codon is- [HSC J B 2023]
(i) UAA
(ii) UAG
(iii) AUG
(a) i and ii
(b) i and iii
(c) ii and iii
(d) i, ii and iii
Answer- (a) i and ii
The DNA template primer sequence will be the base sequence of mRNA produced from GCAT- [HSC J B 2023]
(a) CGUA
(b) GGUA
(c) CUGA
(d) CGUU
Answer- (a) CGUA