Column I

     Column II  

i. Down’s syndrome

a. Broad palm with characteristic palm crease

ii. Klinefelter’s syndrome   

b. Gynaecomastia

iii. Turner’s syndrome

c. rudimentary ovaries

 

d. XO

 

e. XXY

 

f. physical development is retarded.

Choose the correct match:

(1) i-c,d; ii-b,e,f; iii-a

(2) i-e,c; ii-b,f; iii-a,d

(3) i-a; ii-b,e,f; iii-c,d

(4) i-a,c; ii-d,e; iii-b,d

Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 89%
From NCERT
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

Turner’s syndrome is caused by

(1) Absence of Y chromosome

(2) Absence of one of the ‘X’ chromosome

(3) Trisomy of chromosome number 21

(4) Additional copy of chromosome ‘X’.

Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 83%
From NCERT
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 the results, F2 generation of Mendelian dihybrid cross in pea plant. The ratio of yellow and wrinkled seeded pea plant is

(1) 1/16

(2) 3/16

(3) 4/16

(4) 7/16

Subtopic:  Dihybrid Cross: Details |
 71%
From NCERT
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

advertisementadvertisement

What will be the ratio of homozygous dominant, homozygous recessive and pure heterozygous traits in F2 generation in pea plant is

(1) 1 : 1 : 8

(2) 2 : 3 : 2

(3) 1 : 1 : 2

(4) 2 : 2 : 6

Subtopic:  Monohybrid Cross: Further Understanding |
 79%
From NCERT
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 the results, F2 generation of Mendelian dihybrid cross in pea plant. The ratio of yellow and wrinkled seeded pea plant to the yellow and round seeded pea plant is

(1) 1 : 2

(2) 1 : 4

(3) 1 : 3

(4) 3 : 5

Subtopic:  Dihybrid Cross Analysis |
 80%
From NCERT
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

Law of Independent Assortment is not applicable to 

(1) Linked genes

(2) Genes on different chromosomes

(3) Distantly located gene

(4) both (2) and (3)

Subtopic:  Dihybrid Cross: Details |
 77%
From NCERT
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

advertisementadvertisement

Which of the following statement is correct?

(1) Mendel’s work remained unrecognised till 1920.

(2) Mendel’s work suggested that factors were discrete units.

(3) Mendel provided physical proof of the existence of factors.

(4) He used geographical approaches to solve the problems of biology.

Subtopic:  Chromosomal Basis of Inheritance: Introduction |
 81%
From NCERT
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

Who rediscovered Mendel’s laws?

(1) de Vries

(2) Correns

(3) Von Tschermak

(4) all of these

Subtopic:  Chromosomal Basis of Inheritance: Introduction |
 97%
From NCERT
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

Pairing and separation of a pair of chromosomes would lead to segregation of a pair of factors they carried. This conclusion was drawn by

(1) Walter Sutton

(2) Theodore Boveri

(3) both (1) and (2)

(4) Thomas Hunt Morgan

Subtopic:  Chromosomal Basis of Inheritance: Introduction |
 89%
From NCERT
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

advertisementadvertisement

Chromosomal theory of inheritance is a combination of

(1) Knowledge of chromosomal segregation with Mendelian principle

(2) Knowledge of Dihybridcross with motion of chromosome

(3) Knowledge of Law of dominance with chromosomal appearance

(4) Knowledge of classical genetics with modern molecular biology

Subtopic:  Chromosomal Basis of Inheritance: Introduction |
 86%
From NCERT
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