1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Which scientist conducted an experiment with 32P and 35S labelled phages for demonstrating that DNA is the genetic material?

A
james D. Watson and F.H. C. Crick
B
A. D Hershey and M.J. Chase
C
F. Griffith
D
O.T. Avery, C.M. MacLeod and M. McCarty
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

A certain plant homozygous for yellow seeds and red flowers was crossed with a plant homozygous for green seeds and white flowers. The F1 plants had yellow seeds and pink flowers. The F1 plants were selfed to get F2 progeny. Assuming independent assortment of the two characters, how many phenotypic categories are expected for these characters in the F2 generation ?

A
9
B
16
C
4
D
6
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

During which stages of mitosis and meiosis, respectively does the centromere of each chromosome split ?

A
Mataphase, Metaphase II
B
Prophase, Telophase I
C
Telophase, Anaphase I
D
Anaphase, Anaphase II
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following statements is not correct ?

A
Phase of cell elongation of plant cells is characterized by increased vacuolation.
B
Cells in the meristematic phase of growth exhibit abundant plasmodesmatal connections.
C
Plant growth is generally determinate.
D
Plant growth is measurable.
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