1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

In meiosis, crossing over and exchange of genetic material between homologous chromosomes are catalyzed by the enzyme

A
Polymerase
B
Phosphorylase
C
Recombinase
D
Transferase
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

The chromosomal theory of inheritance was proposed by

A
Robert Brown
B
Thomas Morgan
C
Sutton and Boveri
D
Gregor Mendel
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

What is the expected percentage of F2 progeny with yellow and inflated pod in dihybrid cross experiment involving pea plants with green coloured, inflated pod and yellow coloured constricted pod?

A
9%
B
100%
C
56.25%
D
18.75%
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :

A
Trisomy of chromosome 21
B
47 chromosomes with XXY sex chromosomes
C
45 chromosomes with XO sex chromosomes
D
47 chromosomes with XYY sex chromosomes
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