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10th CBSE
IMPORTANT
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In grasshopper, the total number of chromosomes in male is

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Important Questions on Genetics

MEDIUM
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 43
In which of the following organisms, female heterogamety is observed? (A) Peacock (B) Crocodile (C) Butterfly (D) Rabbit (E) Fish
MEDIUM
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 44

Identify the feature for which genes are present in both the sexes, but is predominantly sex specific in humans.

(A) Bald head 

(B) Secretion of milk

(C) Skin colour 

(D) Colour blindness

(E) Development of mustache.

MEDIUM
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 45

Identify the diseases that are not sex specific.

 (A) Hypertrichosis

(B) Hemophilia

(C) Phenylketonuria

(D) Pentadactyly 

(E) Muscular dystrophy.

MEDIUM
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 46
Which of the following type of sex determination involves organisms with different number of chromosomes in males and females?
MEDIUM
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 47
Albinism is a genetic disorder. But it affects both eyesight as well as hearing. Which of the following term can describe this condition?
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 48
Column 1 Column 2
A. A single gene affecting number of characters i. Polygenic inheritance
B. Spectrum of phenotypes ii. Codominance
C. Intermediate phenotypic expression iii. Pleiotropy
D. ABO blood groups iv. Incomplete dominance
MEDIUM
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 49
Column 1 Column 2
A. Birds  i. One gene controls more than one character 
B. True bugs  ii. ZW-ZZ sex determination
C. Pleiotropy  iii. More than two alleles for a gene
D. Multiple allelism  iv. XX-XO type
EASY
10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 1
Identify the plant that exhibits the same characters as represented by TTAA.