Molecular Evolutionary Genetics Analysis. We covered all the Molecular Evolutionary Genetics Analysis MCQ in this post for free so that you can practice well for the exam.
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MCQ on Molecular Evolutionary Genetics Analysis for Students
Which of the following is responsible for controlling the hereditary characteristics of living cells?
(a) Enzyme
(b) Hormone
(c) RNA
(d) DNA
(e) None of the above / More than one of the above
Option d – DNA
Gene is
(a) A segment of DNA
(b) A segment of DNA and histone
(c) A segment of DNA, RNA, and histone
(d) All of the above
Option a – A segment of DNA
Genetic screening is
(a) analysis of DNA to check the presence of a particular gene in a person
(b) analysis of genes in a population
(c) pedigree analysis
(d) screening of infertility in parents
Option a – analysis of DNA to check the presence of a particular gene in a person
A mother of blood group O has a group O child. What could be the blood group of the father of the child?
(a) Only O
(b) A or B or O
(c) A or B
(d) Only AB
Option b – A or B or O
How many pairs of autosomes are seen in human beings?
(a) 23
(b) 22
(c) 46
(d) 44
Option b – 22
A person with blood group ‘A’ can donate blood to persons with blood group ‘A’ or ‘AB’ because it
(a) has both ‘A’ and ‘B’ antigens.
(b) has only ‘A’ antigen and ‘B’ antibodies
(c) has only ‘B’ antigen and ‘A’ antibodies
(d) does not have any antigens and antibodies.
Option b – has only ‘A’ antigen and ‘B’ antibodies
Select the statements that describe characteristics of genes (i) genes are a specific sequence of bases in a DNA molecule (ii) a gene does not code for proteins (iii) in individuals of a given species, a specific gene is located on a particular chromosome (iv) each chromosome has only one gene
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)
Option b – (i) and (iii)
The sex of a newborn baby is determined by the chromosome inherited from
(a) The mother
(b) The father
(c) Mother’s father
(d) Father’s father
Option b – The father
A disorder that is linked to the Y chromosome in humans (holandric) will
(a) only be expressed in males whose mothers were a carrier of the gene
(b) never be passed from father to child
(c) show a pattern of skipping generations in a family
(d) be passed only from father to son
Option d – be passed only from father to son
New species may be formed if (i) DNA undergoes significant changes in cells germ (ii) chromosome number changes in the gamete (iii) there is no change in the genetic material (iv) mating does not take place
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii), and (iv)
(d) (i), (ii), and (iii)
Option a – (i) and (ii)
Select the incorrect statement
(a) Frequency of certain genes in a population change over several generations resulting in the evolution
(b) Reduction in weight of the organism due to starvation is genetically controlled
(c) Low-weight parents can have heavy-weight progeny
(d) Traits that are not inherited over generations do not cause evolution
Option b – Reduction in weight of the organism due to starvation is genetically controlled
An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is
(a) B or A
(b) AB or A
(c) A or O
(d) AB or B
Option d – AB or B
The double helix model of Watson and Crick is known as
(a) C-DNA
(b) B-DNA
(c) Z-DNA
(d) D-DNA
Option b – B-DNA
The shape of the chromosome is clearly visible at
(a) prophase
(b) anaphase
(c) metaphase
(d) telophase
Option c – metaphase
Chromosomes start separating at which stage of mitosis
(a) early metaphase
(b) late metaphase
(c) early anaphase
(d) early telophase
Option c – early anaphase
Biologically, marriage should be avoided between
(a) Rh+ male and Rh+ female
(b) Rh- female and Rh- male
(c) Rh+ female and Rh- male
(d) Rh+ male and Rh- female
Option d – Rh+ male and Rh- female
Amniocentosis is a method used to determine the
(a) foetal sex
(b) kind of Amino acids
(c) the sequence of Amino acids in protein
(d) Type of hormones
Option a – foetal sex
Wings of birds and bats are considered analogous structures because they have
(a) a common origin and common function
(b) different origin and common function
(c) common origin and different function
(d) different origin and different function
Option b – different origin and common function
In human beings, the chromosomes that determine the birth of a normal female child are
(a) one X chromosome from the mother and one X chromosome from the father
(b) one X chromosome from the mother and one Y chromosome from the father
(c) two X chromosomes from the mother and one X chromosome from the father
(d) one X chromosome and one Y chromosome from the father and one X chromosome from the mother
Option a – one X chromosome from the mother and one X chromosome from the father
A student was doing an experiment on increasing cell division among plants. She asked her supervisor to suggest a specific plant hormone for the same. Had you been her supervisor, which plants hormone would you suggest?
(a) Abscisic acid
(b) Gibberellins
(c) Cytokinin
(d) Auxin
Option c – Cytokinin
The sex of a newborn baby is determined by the chromosome inherited from
(a) the mother
(b) the father
(c) the mother’s mother
(d) the father’s father
Option b – the father
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