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Biology Chapter No. 8 Variations and Genetics 2nd Year Online MCQs

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Biology
Variations and Genetics
Chapter No. 8
Second Year
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.








Book Name :  Biology
Chapter No. 08
Chapter Name : VARIATIONS and Genetics
Total MCQ from Text Book :  143
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12th ( F.Sc. Intermediate)
Total Marks : 143
Total Time :  143 minutes






1

GRADE 12 - BIOLOGY CHAPTER NO.8 VARIATIONS & GENETICS

GRADE 12 - BIOLOGY CHAPTER NO.8 VARIATIONS & GENETICS

1 / 143

Phenotype is

2 / 143

The cross in which two characters are followed at the same time is called

3 / 143

In human beings, atrait which is dominant in males & recessive in females is the:

4 / 143

Haemophillia is (Mirpur Kashmir 2015)

5 / 143

Over dominance is

6 / 143

A gamete without any sex chromosome is called:

7 / 143

Rh blood system was discovered by

8 / 143

If the parents belong to blood group 'A' & 'B' but all the groups are represented among their children , their genotype must be:

9 / 143

Which of the followings is true breeding variety?

10 / 143

Which of the following trait is not sex-linked recessive?

11 / 143

Drosophila males for eye colour are:

12 / 143

Flower colour in 4o clock gives ratio in F2

13 / 143

Blodd group All can he donated to

14 / 143

If test cross gives 50% dominant and 50% recessive characters it means the parent is

15 / 143

In F2 generation, which forms are true breeds?

16 / 143

Which of the following trait is transmitted directly from an affected father to

17 / 143

What is the risk of a colour-blind child in a family when father is colour

18 / 143

SeCretors have daminant secretor gene "Se" on chromosome:(Lahore 2014)

19 / 143

ABOP blood group system was discovered by

20 / 143

The cross used to determined the genotype is called

21 / 143

The genic system for determination of sex is present in :

22 / 143

Which of the followings is not multiple allele?

23 / 143

The product of hybridization is called:

24 / 143

In pleiotropy

25 / 143

The law of segregation gives genotypic ratio of F2 as

26 / 143

Which of followings He Is sterile female in man?

27 / 143

Glucokinase enzyme usually converts glucose to glucose-6- phosphate in

28 / 143

How many varieties of garden pea were selected by Mendel?

29 / 143

Children of the Rh negative mother & Rh positive father:

30 / 143

What happen when both alleles of a gene pair independently express in a heterzygote:

31 / 143

WZ-ZZ type of sex determination was discovered in:

32 / 143

Test cross is made to find out:

33 / 143

If the cell of an organism heterozygous for two pairs of genes representedby Aa, undergoes meiosis, then the possible genotypic combination of gametes will be:

34 / 143

Erythrohlastosis foetalls itcharacterized by the symptom of

35 / 143

What is the risk of a colour-blind child In a family when mother is colour

36 / 143

A woman can be bald only when she is: (Bahawalpur 12, Mirpur 13)

37 / 143

MN blood group system is example of; (Fsd 2015, Mirpur Kashmir 2016)

38 / 143

Diabetios are unable to metabolize blood: (Sargodha 11, Rawalpindi 2013)+A129

39 / 143

Mendelian laws were first confirmed by:

40 / 143

Rh can be donated to

41 / 143

In a dibybrid cross, the ratio comes to be 9 : 3 : 3 : 1 for seed shape and seed colour, what Would be the ratio betWeen an allele of seed shape in this case

42 / 143

Type 'l diabetes usually occurs in early age before:

43 / 143

ABO blood group system was discovered by: (Mtn .2015)

44 / 143

The true colour blindness is

45 / 143

True colour blindness is called:

46 / 143

The factors are recognized as:

47 / 143

All the genes found in an breeding population constitute:

48 / 143

Green colorblindness is called: (Rawalpindi 2016)

49 / 143

is the form of appearance of a trait. (Multan 2016)

50 / 143

Which of the followings is homozygous

51 / 143

Mendelian factors were renamed as genes by (Sargodha 2016)

52 / 143

The blood group without antibody Is

53 / 143

The gene for blue opsin is present on autosome D.G.Khan 2015 Group II)

54 / 143

Chances of genetic recombination are minimized due to (Rawalpindi 2015)

55 / 143

The pattern of sex determination in birds is

56 / 143

Bilirubin damages brain cells and turn the skin and whites of eyes yellow, condition is known as " (D.G.Khan 2016 Group II)

57 / 143

ABO-blood groups in man is a hereditary character which is controlled by a set of:

58 / 143

Polio determine sex in certain plants was discovered by

59 / 143

Mendel was born in the year:

60 / 143

Sex chromosome are found in:

61 / 143

A man with blood group AB married to a woman with blood group A. Which of the following blood group cannot be found in their offspring?

62 / 143

WZ-ZZ type of sex determination was discovered by:

63 / 143

In drosophila detemilnation of male depends on

64 / 143

When an allele falls to express itself in the presence of the other allele, the former is said to be:

65 / 143

Sex in yeast Is controlled by

66 / 143

How many gene pairs contribute to the wheat grain colour? (Grw 2016)

67 / 143

The blood group without antigen is

68 / 143

In case of incomplete dominance

69 / 143

The result of Mendelian Fl were all

70 / 143

This cross finds out the homozygous or heterozygous nature of the genotype: (Fsd 13)

71 / 143

Blood group 'A' can be transfused only Into (Mirpur 12)

72 / 143

Which phenomenon reduces the chances of genetic recombination & variations among offspring?

73 / 143

Blue Cone monochromacy is also called:

74 / 143

Which of the following process can reduce variation?

75 / 143

The trait found in 1/4 in F2 was

76 / 143

Different alleles of a gene that 'are both expressed in a heterozygous condition are called:

77 / 143

The pattern of sex determination in man is

78 / 143

A dwarf plant (pea) which. is treated with GA, grows as tall as the tall, the ratio in the offsprings will be:

79 / 143

From a cross AaBBX iaB13 'following genotypic ration will be- obtain in F1 generation:

80 / 143

Tritinapia is also called as

81 / 143

When a gene or gene pair at one locus, interferes with or hides the effect caused by another gene or gene pair at another ldcus, the phenomenon is:

82 / 143

The female in butterflies is

83 / 143

Erythroblastosis foetalis is caused

84 / 143

The organisms produced by self cross different in one characters are

85 / 143

Rte can be donoted to

86 / 143

Genotype is

87 / 143

Which of the followings is sterile male in Drosophila?

88 / 143

A baby born alive in spite of maternal foetal Rh incompatibility may suffer from severe haemolytic anaemia and:

89 / 143

The person commonly known as father of Genetics is:

90 / 143

Who for the first time found white eye mutant in drosophila;

91 / 143

Any group of inter breeding organisms of the same species that exist together in both time and space is called:

92 / 143

Bombay phenotype is an example of: (Fsd 2016)

93 / 143

When tall is crossed with dwarf, F, gives tall, it is

94 / 143

The sex chromosomes were discovered by

95 / 143

Law of segregation suggests that each gametes has

96 / 143

In test cross if the parent whOse genotype is to be determined is heterozygous then it gives

97 / 143

Green colour blindness is called:

98 / 143

XO-XX type of sex determination is found in:

99 / 143

When round wrinkle were cross, it gave all round. This round is

100 / 143

Rh blood group system is named after its : (Lahore 2016 Group I)

101 / 143

The number of chromosomes present in female Ascaris is

102 / 143

The children of the parents having blood group 'A' & 'AB' may belong to blood groups:

103 / 143

Which of these traits zigzags from maternal grand father through a carrier daughter to a grandson?

104 / 143

Both husband and -wife have blood group A. Which of the followings blood grotip can present In their offspring?

105 / 143

About 50% cases of MODY are caused by mutations in :

106 / 143

Locus is a

107 / 143

If there is cross between round and yellow with, wrinkle and green, the F2 gives Wrinkle green:

108 / 143

The hidden ratio of 3 : 1 in mendelian experiment

109 / 143

Haemophilia C: (D. G. Khan 14, Bahawalpur 2013,Lahore 2015)

110 / 143

Diabetes mellitus type II accounts for, F of all diabetic patients?

111 / 143

Mendelian inheritance is the inheritance of:

112 / 143

The gene that triggers deVelopmental process towards maleness is:

113 / 143

When a single gene has a multiple phenotypic effects called: -

114 / 143

In honey bee males sperm are produced by: (Lahore 2015 Group II)

115 / 143

The genes located on the same chromosomes:

116 / 143

SRY gene Is present on

117 / 143

A heterozygote offspring quantitatively exceeds the phenotypic expression of both the homozygo to parents due to:

118 / 143

Which of the followings haemophilia, is autosomal recessive?

119 / 143

Bbbed gene in-Drosophila are present on:

120 / 143

An albino woman married to normal male whose father was albino. The ratio of their albino in their off spring will be

121 / 143

Human skin colour is controlled by gene pairs:

122 / 143

In epistasis

123 / 143

If there is cross- between round and yellow with wrinkle and green, the F2 gives Round yellow

124 / 143

A gamete without any sex-chromosome is called: (Mirpur 14)

125 / 143

Position of a gene on the chromosomes is called its:

126 / 143

Pattern baldness is (Mir Supp 13)

127 / 143

When one gene does not allow the expression of other non-allelic gene, it is referred to as:

128 / 143

If the children of the parents of blood group 'A' have 'A' & '0' groups , then the genotypes of the parents must be:

129 / 143

In AB blood group IAIB is

130 / 143

In 1901, BO group system was discovered by (Multan 2014, 15, Grw 2014)

131 / 143

When a haemophilia carrier woman marries a normal man, who among her offspring may be affected?

132 / 143

Mendel In his, experiment, he did not consider:

133 / 143

Mendelian laws are only applicable when:

134 / 143

The genetic basis of ABO blood group system was discovered by

135 / 143

Blue Cone Monochromacy is an x-linked trait in which:

136 / 143

The example of multiple allele is

137 / 143

An example of multifactorial trait in man is the:

138 / 143

The sex determining genes are found in:

139 / 143

When different alleles of a gene are both expressed in heterozygous condition. It is called: (Fsd 14, Sargodha 2013)

140 / 143

An example of sex-limited trait in humans is the:

141 / 143

Blood group AB can receives

142 / 143

An Rh woman Is married to Rh man.The risks of Erythroblastosis foetalis baby can be

143 / 143

different alleles of a gene that are both expressed in a heterozygous condition are called

Your score is

The average score is 64%

0%

[mtouch quiz 157]



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