Mendelian Genetics MCQs | Mendelian Genetics Multiple Choice Questions and Answers

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Questions
1 The characteristic indicated by the blackened figures is probably:
A Dominant
B Recessive
C Non-dominant
D Sex-linked recessive

Answer: Dominant
2 What are the genotypes of the parents?
A Both are homozygous dominant
B Both are heterozygous dominant
C Both are homozygous recessive
D The male is homozygous dominant; the female is homozygous recessive

Answer: Both are heterozygous dominant
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3 The cytoplasm of an animal cell is divided by means of:
A A cleavage furrow
B A cell plate
C A cell membrane formed within the cytoplasm
D Mitosis

Answer: A cleavage furrow
4 An example of alleles is:
A AB and Tt
B TT and Tt
C T and t
D X and Y

Answer: T and t
5 Long radishes crossed with round radishes result in all oval radishes. This type of inheritance is:
A Multiple alleles
B Complete dominance
C Co-dominance
D Incomplete dominance

Answer: Multiple alleles
6 In drosophila (fruit flies), eye colour is sex-linked and red eye colour is dominant to white eye colour. Which of the following are not possible in a cross between a red-eyed male and a heterozygous female?
A Red-eyed male
B White-eyed male
C Carrier female
D Homozygous white-eyed female

Answer: Carrier female
7 Genetic traits of seeds are noted as follows: L = long, l = short W = wrinkled, w = smooth Y = yellow, y = white R = ribbed, r = grooved Which of the following is the genotype for a short, wrinkled, yellow, grooved seed?
A llWwyyrr
B LLWWyYRr
C LlWwYYRr
D llWwYYrr

Answer: LlWwYYRr
8 Carriers of the colour-blindness trait include:
A Men who are heterozygous for the trait
B Men who are homozygous for the trait
C Women who are heterozygous for the trait
D Women who are homozygous for the trait

Answer: Women who are heterozygous for the trait
9 A strand of DNA with the sequence A A C T T G will have a complimentary strand with the following sequence:
A CCAGGT
B AACTTG
C TTCAAG
D TTGAAC

Answer: TTGAAC
10 The innate tendency of offspring to resemble their parents is called
A Varaition
B Heridity
C Inheritance
D Resemblance

Answer: Heridity
11 Mendel’s experimental material was
A Pisum sativum
B Lathyrus odaratus
C Oryza sativa
D none of the above

Answer: Pisum sativum
12 The physical expression or appearance of a character is called as
A Morphology
B Geneoype
C Phenotype
D Ecotype

Answer: Phenotype
13 If the genotype consists of only one type of allele. It is called
A Homozygous
B Hetreozygous
C Momoallelic
D Uniallelic

Answer: Homozygous
14 If different alleles are present in the same genotype then it is called
A Homozygous
B Hetreozygous
C Diallelic
D Polyallelic

Answer: Hetreozygous
15 Mendel was a
A Austrian biology teacher
B Austrian monk
C Austrian scientist
D Austrian mathematician

Answer: Austrian monk
16 The number of types of gametes produced by a heterozygous individual is
A 1
B 2
C 3
D many

Answer: 2
17 During his experiments, Mendel called genes by the term
A Factors
B Traits
C Characters
D Qualities

Answer: Factors
18 The number of types of gametes produced by a homozygous individual is
A 1
B 2
C 3
D many

Answer: 1
19 The alternate forms of a gene is called
A Recessive Character
B Dominant Character
C Alleles
D Alternative Gene

Answer: Alleles
20 Genotype is the
A Genetic Constitution
B Genetic Constitution Of The Phenotype
C Trait Expressed
D Expressed Genes

Answer: Genetic Constitution Of The Phenotype

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