A common test to find the genotype or hybrid is by :

(1) crossing of one F2 progeny with male parent

(2) crossing of one F2 progeny with female parent

(3) studying the sexual behaviour of F1 progenies

(4) crossing of one F1 progeny with recessive parent

Subtopic:  Monohybrid Cross: Further Understanding |
 87%
From NCERT
NEET - 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

In pea plants, yellow seeds are dominant to green. If heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green plants would you expect in F1 generation ?

(1) 50 : 50

(2) 9 : 1

(3) 1 : 3

(4) 3 : 1

Subtopic:  Monohybrid Cross: 1 |
 72%
From NCERT
NEET - 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

Which one of the following is the most suitable, medium for culture of Drosophila melanogaster ?

(1) Moist bread

(2) Agar agar

(3) Ripe banana

(4) Cow dung

Subtopic:  Chromosomal Basis of Inheritance: Further Considerations |
 54%
NEET - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Phenotype of an organism is the result of :

(1) mutations and linkages

(2) cytoplasmic effects and nutrition

(3) environmental changes and sexual dimorphism

(4) genotype and environmental interactions.

Subtopic:  Monohybrid Cross: 1 |
 67%
NEET - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

In which mode of inheritance do you expect more maternal influence among the offspring ?

(1) Autosomal

(2) Cytoplasmic

(3) Y-linked

(4) X-linked

Subtopic:  Sex Determination |
NEET - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

How many different kinds of gametes will be produced by a plant having the genotype AABbCC ?

(1) Three

(2) Four

(3) Nine

(4) Two

Subtopic:  Dihybrid Cross: Details |
 64%
NEET - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Which one of the following is an example of polygenic inheritance ?

(1) Flower colour in Mirabilis jalapa 

(2) Production of male honey bee

(3) Pod shape in garden pea

(4) Skin colour in humans

Subtopic:  Polygenic Inheritance & Pleiotropy |
 92%
From NCERT
NEET - 2006
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

In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy ?

1. Only round seeds with green cotyledons

2. Only wrinkled with yellow cotyledons

3. Only wrinkled seeds with green cotyledons

4. Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons.

Subtopic:  Dihybrid Cross Analysis |
 87%
From NCERT
NEET - 2006
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

Test cross involves :

(1) crossing between two geneotypes with recessive trait

(2) crossing between two F1 hybrids

(3) crossing the F1 hybrid with a double recessive genotype

(4) crossing between two genotypes with dominant trait

Subtopic:  Monohybrid Cross: Further Understanding |
 71%
From NCERT
NEET - 2006
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 colourblind woman marries a normal visioned man, their sons wil be :

(1) all normal visioned

(2) one-half colourblind and one-half normal 

(3) three-fourths colourblind and one-fourth normal

(4) all colourblind

Subtopic:  Sex Linked Recessive Inheritance |
 66%
NEET - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints