1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Ten E.coli cells with 15N - dsDNA are incubated in medium containing 14N nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from 15N?

A
20 cells
B
40 cells
C
60 cells
D
80 cells
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The recombination frequency between the genes a & c 5&, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 25% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?

A
a, d, b, c
B
d, b, a, c
C
a, b, c, d
D
a, c, b, d
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following are not the effects of Parathyroid hormone?

(a) Stimulates the process of bone resorption

(b) Decreases Ca2+ level in blood

(c) Reabsorption of Ca2+ by renal tubules

(d) Decreases the absorption of Ca2+ from digested food

(e) Increases metabolism of carbohydrates

Choose the most appropriate answer from the options given below:

A
(a) and (c) only
B
(b), (d) and (e) only
C
(a) and (e) only
D
(b) and (c) only
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following is not a desirable feature of a cloning vector?

A
Presence of origin of replication
B
Presence of a marker gene
C
Presence of single restriction enzyme site
D
Presence of two or more recognition sites
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