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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 component governs the hereditary traits of Living Organisms?
(a) Enzyme
(b) Hormone
(c) RNA
(d) DNA
Option d – DNA
What defines a gene?
(a) A specific section of DNA
(b) A DNA fragment bound with histone proteins
(c) A combination of DNA, RNA, and histone components
(d) All of the above
Option a – A specific section of DNA
What is genetic screening?
(a) Studying DNA to identify the presence of a certain gene in an individual
(b) Evaluating gene distribution in a Population
(c) Analyzing family History through pedigree charts
(d) Testing parents for infertility issues
Option a – Studying DNA to identify the presence of a certain gene in an individual
A mother with blood group O has a child with the same group. What are the possible blood groups of the father?
(a) Only O
(b) A, B, or O
(c) A or B
(d) Only AB
Option b – A, B, or O
How many autosomal chromosome pairs exist in humans?
(a) 23
(b) 22
(c) 46
(d) 44
Option b – 22
Why can someone with blood type ‘A’ donate blood to individuals with blood types ‘A’ and ‘AB’?
(a) Because they carry both ‘A’ and ‘B’ antigens
(b) Because they have ‘A’ antigen and ‘B’ antibodies
(c) Because they contain ‘B’ antigen and ‘A’ antibodies
(d) Because they lack any antigens and antibodies
Option b – Because they have ‘A’ antigen and ‘B’ antibodies
Choose the correct descriptions related to genes (i) Genes are particular sequences of DNA Bases (ii) Genes do not produce proteins (iii) A specific gene lies at a definite spot on a chromosome in a species (iv) Each chromosome carries only one gene
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)
Option b – (i) and (iii)
Which parent’s chromosome determines the gender of the baby?
(a) The mother
(b) The father
(c) The maternal grandfather
(d) The paternal grandfather
Option b – The father
A Y-linked (holandric) genetic condition will
(a) Show up in males whose mothers carried the gene
(b) Never transfer from father to offspring
(c) Skip generations within a family
(d) Be inherited solely from father to son
Option d – Be inherited solely from father to son
Formation of a new species can occur if (i) There are major DNA alterations in germ cells (ii) Changes occur in the chromosome number in gametes (iii) The genetic content remains constant (iv) Reproduction does not happen
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii), and (iv)
(d) (i), (ii), and (iii)
Option a – (i) and (ii)
Identify the incorrect statement
(a) Gene frequencies in a Population can change across generations, leading to Evolution
(b) Starvation-induced weight loss is determined genetically
(c) Low-weight parents may give birth to heavier children
(d) Non-inherited traits across generations do not contribute to evolutionary changes
Option b – Starvation-induced weight loss is determined genetically
In an emergency, a person with blood Group B can donate blood to
(a) B or A
(b) AB or A
(c) A or O
(d) AB or B
Option d – AB or B
What type of DNA is described by the Watson and Crick double helix structure?
(a) C-DNA
(b) B-DNA
(c) Z-DNA
(d) D-DNA
Option b – B-DNA
During which mitotic phase is the chromosome structure most clearly observed?
(a) Prophase
(b) Anaphase
(c) Metaphase
(d) Telophase
Option c – Metaphase
At what mitotic stage do chromosomes begin to separate?
(a) Early metaphase
(b) Late metaphase
(c) Early anaphase
(d) Early telophase
Option c – Early anaphase
From a biological viewpoint, which marriage pairing should ideally be avoided?
(a) Rh-positive male and Rh-positive female
(b) Rh-negative female and Rh-negative male
(c) Rh-positive female and Rh-negative male
(d) Rh-positive male and Rh-negative female
Option d – Rh-positive male and Rh-negative female
What does the procedure of amniocentesis help determine?
(a) Sex of the fetus
(b) Type of amino Acids
(c) Protein amino Acid sequence
(d) Nature of hormones
Option a – Sex of the fetus
Why are the wings of birds and bats termed analogous structures?
(a) Same origin and same function
(b) Different origin but same function
(c) Same origin but different function
(d) Different origin and different function
Option d – Different origin and different function
Which chromosomes are involved in determining the birth of a typical female?
(a) One X from the mother and one X from the father
(b) One X from the mother and one Y from the father
(c) Two X chromosomes from the mother and one from the father
(d) One X and one Y from the father and one X from the mother
Option a – One X from the mother and one X from the father
A student is investigating ways to increase plant cell division. Which hormone should she be advised to use?
(a) Abscisic Acid
(b) Gibberellins
(c) Cytokinin
(d) Auxin
Option c – Cytokinin
Who determines the baby’s sex chromosome during conception?
(a) The mother
(b) The father
(c) The maternal grandmother
(d) The paternal grandfather
Option b – The father
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