Welcome to the Mendel‟S Principles Of Inheritance MDCAT MCQs with Answers. In this post, we have shared Mendel‟S Principles Of Inheritance Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Biology offers a chance to enhance your knowledge regarding Mendel‟S Principles Of Inheritance MCQs in this MDCAT Online Test.
Who is known as the father of genetics?
a) Charles Darwin
b) Gregor Mendel
c) James Watson
d) Thomas Morgan
Which plant did Mendel use in his experiments?
a) Corn
b) Rice
c) Pea
d) Wheat
Mendel’s experiments were based on which of the following?
a) Genetic mutation
b) Inheritance patterns
c) Genetic engineering
d) Evolution
Mendel’s principle of segregation states that:
a) Genes always blend together
b) Alleles separate during gamete formation
c) Traits skip generations
d) Genes only appear in dominant forms
In Mendel’s experiments, which generation was completely dominant?
a) F1 generation
b) F2 generation
c) P generation
d) F3 generation
Which of the following represents a heterozygous genotype?
a) AA
b) aa
c) Aa
d) AAA
Mendel’s principle of independent assortment refers to the:
a) Separation of alleles during meiosis
b) Inheritance of one trait independent of another
c) Dominance of traits
d) Blending of traits
In a dihybrid cross, the phenotypic ratio in the F2 generation is:
a) 3:1
b) 1:2:1
c) 9:3:3:1
d) 2:1
If a pea plant is heterozygous for height (Tt), what would be the probability of producing a tall plant when crossed with a tt plant?
a) 25%
b) 50%
c) 75%
d) 100%
Mendel observed traits in pea plants that had how many variations?
a) 2
b) 3
c) 4
d) 5
Which of the following is an example of a dominant trait observed by Mendel?
a) Green seed color
b) Yellow seed color
c) Wrinkled seed shape
d) Short plant height
Which of the following best defines an allele?
a) A physical characteristic
b) A version of a gene
c) A mutation in a gene
d) A chromosome pair
If a purebred tall pea plant (TT) is crossed with a purebred short pea plant (tt), what is the genotype of all the offspring?
a) TT
b) tt
c) Tt
d) tT
A monohybrid cross involves the study of how many traits?
a) 1
b) 2
c) 3
d) 4
In a heterozygous organism, the allele that is expressed is called the:
a) Recessive allele
b) Co-dominant allele
c) Dominant allele
d) Subordinate allele
Which of the following is an example of a homozygous recessive genotype?
a) AA
b) Aa
c) aa
d) aA
Mendel concluded that inherited traits are controlled by:
a) Proteins
b) Enzymes
c) Genes
d) RNA
The ratio 3:1 in Mendel’s experiments refers to the:
a) Genotypic ratio of F1 offspring
b) Phenotypic ratio of F2 offspring
c) Genotypic ratio of F2 offspring
d) Phenotypic ratio of F1 offspring
Which of the following was not a trait studied by Mendel in pea plants?
a) Flower color
b) Seed shape
c) Pod color
d) Leaf shape
What is the term for different forms of a gene?
a) Chromosomes
b) Alleles
c) Nuclei
d) Enzymes
A test cross is used to determine:
a) The exact chromosome number
b) The genotype of an individual with a dominant phenotype
c) The likelihood of mutations
d) The environmental influence on traits
The law of segregation occurs during which phase of meiosis?
a) Prophase I
b) Metaphase II
c) Anaphase I
d) Telophase I
Which of the following is an example of codominance?
a) Blood type AB
b) Height in humans
c) Color blindness
d) Pea plant flower color
Which of the following best describes Mendel’s law of independent assortment?
a) Traits are inherited independently of each other
b) Traits are inherited together
c) Traits are determined by environmental factors
d) Traits are randomly expressed
Which of the following was a recessive trait in Mendel’s experiments?
a) Round seed shape
b) Yellow seed color
c) Green seed color
d) Tall stem height
What is the phenotype of an organism?
a) The genetic makeup
b) The physical appearance
c) The chromosome number
d) The location of genes
Mendel’s work was rediscovered in which year?
a) 1900
b) 1890
c) 1950
d) 1920
Which scientist rediscovered Mendel’s work?
a) Hugo de Vries
b) Charles Darwin
c) James Watson
d) Alfred Wallace
What ratio did Mendel find in the F2 generation of a monohybrid cross?
a) 9:3:3:1
b) 3:1
c) 1:2:1
d) 2:1
In Mendel’s experiments, which allele is always expressed in a heterozygous condition?
a) Dominant
b) Recessive
c) Co-dominant
d) Mutant
How many alleles control a Mendelian trait?
a) 1
b) 2
c) 3
d) 4
The study of how traits are passed from parents to offspring is called:
a) Evolution
b) Heredity
c) Ecology
d) Mutation
A cross between two heterozygous individuals will produce what genotypic ratio in the offspring?
a) 1:1
b) 1:2:1
c) 3:1
d) 9:3:3:1
If a trait skips a generation, it is likely to be:
a) Dominant
b) Recessive
c) Co-dominant
d) Sex-linked
Mendel’s law of segregation explains the separation of:
a) Chromosomes
b) Sister chromatids
c) Alleles
d) Genes
Which of the following is a purebred genotype?
a) Aa
b) BB
c) Cc
d) Dd
The phenotype ratio in a dihybrid cross F2 generation is:
a) 9:3:3:1
b) 1:1
c) 3:1
d) 2:1
How many total traits did Mendel study in his experiments on pea plants?
a) 5
b) 7
c) 9
d) 11
What was Mendel’s profession before his work in genetics?
a) Scientist
b) Priest
c) Teacher
d) Botanist
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