Principles Of Inheritance And Variation — DPP 11

20 NEET questions from Principles Of Inheritance And Variation, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
A normal woman whose father was albino, marries an albino man, what proportion of normal and albino are expected among their offsprings :-
  1. A All normal
  2. B 2 normal : 1 Albino
  3. C All albino
  4. D 1 normal: 1 Albino
Show answer

Correct answer: D

2
Who among the following used the frequency of recombination between gene pairs on the same chromosome as a measure of distance between genes and mapped their position?
  1. A Davenport
  2. B Sturtevant
  3. C Morgan
  4. D Nillson
Show answer

Correct answer: B

3
Morgan coined the term $\_\_\_\_$ to describe the physical association of genes on a chromosome & the term $\_\_\_\_$ to describe the generation of non-parental gene combinations :-
  1. A Recombination; Linkage
  2. B Recombination; Non-recombination
  3. C Linkage; Non-recombination
  4. D Linkage; Recombination
Show answer

Correct answer: D

4
Which of the following is correct ?
  1. A When genes are grouped on the same chromosome, some genes are very tightly linked and showed very low recombination
  2. B When genes are loosely linked show very low recombination
  3. C When genes are tightly linked show higher recombination
  4. D When genes are loosely linked show no recombination
Show answer

Correct answer: A

5
In monohybrid cross the allele do not show any blending and that both the characters are recovered as such in $\mathrm{F _ { 2 }}$ generation. This statement is explained on the basis of :-
  1. A Dominance
  2. B Segregation
  3. C Independent assortment
  4. D All the above
Show answer

Correct answer: B

6
What is the probability of three daughters to a couple in three children :-
  1. A $\frac { 1 } { 4 }$
  2. B $\frac { 1 } { 8 }$
  3. C $\frac { 1 } { 16 }$
  4. D $\frac { 3 } { 8 }$
Show answer

Correct answer: B

7
Which of the following symbols are used for representing sex chromosome of birds :-
  1. A $\mathrm { ZZ } - \mathrm { ZW }$
  2. B $\mathrm { XX } - \mathrm { XY }$
  3. C $\mathrm { XO } - \mathrm { XX }$
  4. D $\mathrm { ZZ } - \mathrm { WW }$
Show answer

Correct answer: A

8
Walter Sutton is famous for his contribution to:
  1. A Genetic engineering
  2. B Totipotency
  3. C Quantitative genetics
  4. D Chromosomal theory of inheritance
Show answer

Correct answer: D

9
Graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross, is known as :-
  1. A Mendel square
  2. B Punnett square
  3. C Crossboard method
  4. D Emasculation method
Show answer

Correct answer: B

10
Hypertrichosis is :-
  1. A Holandric character
  2. B X-Linked character
  3. C Diagenic character
  4. D Sex-influenced character
Show answer

Correct answer: A

11
Male heterogamety found in :-
  1. A Human
  2. B Grasshopper
  3. C Many birds
  4. D Both (A) and (B)
Show answer

Correct answer: D

12
Gene for cytoplasmic male sterility in plants are generally located in the :-
  1. A chloroplast genome
  2. B mitochondrial genome
  3. C nuclear genome
  4. D cytosol
Show answer

Correct answer: B

13
Genes responsible for ABO blood group determines which of the following biomolecules of RBC plasma membrane?
  1. A Phospholipid
  2. B Proteins
  3. C Sugars
  4. D Cholesterol
Show answer

Correct answer: C

14
Which of the following conditions represent a case of co-dominant genes?
  1. A A gene expresses itself, suppressing the phenotypic effect of its alleles
  2. B Genes that are similar in phenotypic effect when present separately, but when together interact to produce a different trait
  3. C Allele, both of which interact to produce a trait, which may resemble either of the parental type.
  4. D Alleles, each of which produces an independent effect in heterozygous condition.
Show answer

Correct answer: D

15
Lack of independent assortment of two genes A and B in fruit fly is due to :-
  1. A Crossing over
  2. B Repulsion
  3. C Recombination
  4. D Linkage
Show answer

Correct answer: D

16
The possible blood groups of children born to parents having A and AB groups are :-
  1. A O, A
  2. B A , B , A B
  3. C O, A, B
  4. D O , A , B , A B
Show answer

Correct answer: B

17
Who among the following united the knowledge of chromosomal segregation with Mendelian principles and called it chromosomal theory of inheritance?
  1. A Bateson
  2. B Boveri
  3. C Sutton
  4. D Correns
Show answer

Correct answer: C

18
A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?
  1. A 8
  2. B 16
  3. C 2
  4. D 32
Show answer

Correct answer: B

19
When the phenotypic and genotypic ratios resemble in the $\mathrm{F _ { 2 }}$ generation it is an example of :-
  1. A Independent assortment
  2. B Qualitative inheritance
  3. C Segregation of factors
  4. D Incomplete dominance
Show answer

Correct answer: D

20
In case of ABO blood group allele $\mathrm { I } ^ { \mathrm { A } }$ and $\mathrm { I } ^ { \mathrm { B } }$ if present together then :
  1. A Only $\mathrm { I } ^ { \mathrm { A } }$ allele expresses
  2. B Only $\mathrm { I } ^ { \mathrm { B } }$ allele expresses
  3. C Both I ${ } ^ { \mathrm { A } }$ and I ${ } ^ { \mathrm { B } }$ alleles express
  4. D None of these
Show answer

Correct answer: C

Attempt this as a timed test

Reading answers is not the same as sitting the paper. Attempt it timed and you get your score, per-question timing, and the mistakes tracked for revision.

Start free

More Principles Of Inheritance And Variation tests

Principles Of Inheritance And Variation — DPP 1 20 Q Principles Of Inheritance And Variation — DPP 2 20 Q Principles Of Inheritance And Variation — DPP 3 20 Q Principles Of Inheritance And Variation — DPP 4 20 Q Principles Of Inheritance And Variation — DPP 5 20 Q Principles Of Inheritance And Variation — DPP 6 20 Q
All Principles Of Inheritance And Variation questions & tests →