The ratio in a dihybrid test cross between two individuals is given by

(1) 2:1

(2) 1:2:1

(3) 3:1

(4) 1:1:1:1

Subtopic:  Dihybrid Cross Analysis |
 68%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

A point mutation comprising the substitution of a purine by pyrimidine is called

(1) transition

(2) translocation

(3) deletion

(4) transversion

Subtopic:  Recombination Gene Mapping |
 53%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Pure line breed refers to

(1) heterozygosity only

(2) heterogyzosity and linkage

(3) homozygosity only

(4) homozygosity and self assortment.

Subtopic:  Monohybrid Cross: 1 |
 62%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Given below is a pedigree chart showing the inheritance of a certain sex-liniked trait in humans. 

The Trait traced in the above pedigree chart is 

(1) dominant X-linked 

(2) recessive X-linked

(3) dominant Y-linked

(4) recessive Y-linked

Subtopic:  Pedigree Analysis: Problem Solving |
 65%
AIIMS - 2005
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The "cri-du-chat" syndrome is caused by change in chromosome structure invloving

(1) deletion

(2) duplication

(3) inversion

(4) translocation

Subtopic:  Recombination Gene Mapping |
 66%
AIIMS - 2005
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Grain colour in wheat is determined by three pairs of polygenes. Following the cross AABBCC (dark colour) X aabbcc (light colour), in F2 generation what proportion of the progeny is likely to resemble either parent?

(1) None

(2) Less than 5 percent

(3) One third

(4) Half

Subtopic:  Dihybrid Cross: Details |
 50%
AIIMS - 2005
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

XO-chromosomal abnormality in human beings causes

(1) Turner's syndrome

(2) Down's syndrome

(3) Kilnefelter's syndrome

(4) none of these.

Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 87%
From NCERT
AIIMS - 2007
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

If a homozygous red-flowered plant (dominant)is crossed with a homozygous white-flowered plant, the offsprings will be

(1) half-white flowered

(2) half red-flowered

(3) all white-flowered

(4) all red-flowered

Subtopic:  Monohybrid Cross: 1 |
 89%
From NCERT
AIIMS - 2007
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Gene which suppresses other gene's activity but does not lie on the same locus is called as 

(1) epistatic

(2) supplemetary

(3) hypostatic

(4) codominant

Subtopic:  Epistasis |
 77%
AIIMS - 2007
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

How many genome types are present in a typical green plants cell?

(1) More than Five

(2) More than Ten

(3) Two

(4) Three

Subtopic:  Introduction to Genetics: 2 |
 55%
AIIMS - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints