Free MCQs & Online Quiz Practice for Exams

Q: Which one of the following is a sex-linked inheritance? (2013 ETEA)

A) Baldness

B) Albinism

C) Eye colour

D) Myopia

Q: The cross between two dissimilar individuals is called: (2014 ETEA)

A) Test cross

B) Interbreeding

C) Epistasis

D) Hybridization

Q: If two heterozygous tall plants are crossed together, the proportion of phenotypically tall plants will be: (2014 ETEA)

A) 50%

B) 25%

C) 75%

D) 100%

Q: The fluorescent pigments in the eyes of fruit fly are an example of: (2016 ETEA)

A) Over dominance

B) Complete dominance

C) Incomplete dominance

D) Co-dominance

Q: ABO blood group is an example of: (2017 ETEA)

A) Multiple alleles and incomplete dominance

B) Codominance and incomplete dominance

C) Incomplete dominance only

D) Multiple alleles and codominance

Q: XX-XY type of sex determination pattern is present in which of the following organisms? (2017 ETEA)

A) Humans

B) Butterflies

C) Grasshopper

D) Drosophila

Q: In a mating between two individuals that are heterozygous for a recessive lethal allele, what genotypic ratio (homozygous dominant: heterozygous: homozygous recessive) would you expect in offspring? (2017 ETEA)

A) 1:2:1

B) 3:1:1

C) 1:2:0

D) 0:2:1

Q: If black and white true breeding mice are mated and the result is all grey offspring, what inheritance pattern would this be indicative of? (2018 ETEA)

A) Dominance

B) Codominance

C) Multiple alleles

D) Incomplete dominance

Q: A heterozygote fruit fly has more fluorescent pigments in its eyes than a wild homozygote fruit fly. This is an example of: (2018 ETEA)

A) Co-dominance

B) Incomplete dominance

C) Over dominance

D) Complete dominance

Q: In Drosophila, which results in sterility? (2019 ETEA)

A) Female

B) Male

C) Both A and B

D) No effect

Q: Which traits are most likely to affect men more than women? (2020 ETEA)

A) X-linked recessive

B) X-linked dominant

C) Autosomal dominant

D) Autosomal recessive

Q: Alleles both have an effect on the phenotype of a heterozygous organism: (2020 ETEA)

A) Dominant

B) Recessive

C) Multiple

D) Co-dominant

Q: When both the alleles of a gene are same, the organism is said to be: (2020 ETEA)

A) Heterozygous

B) Genotype

C) Homozygous

D) Phenotype

Q: A pure breeding tall plant was crossed to a dwarf plant. What would be the probability of Tt genotype in F2? (2019 ETEA)

A) 0

B) 0.25

C) 0.5

D) 0.75

Q: All of the following are derived from mesoderm except: (2012 ETEA)

A) Muscles

B) Liver

C) Gonads

D) Blood vessels

Q: In chick development, epiblast gives rise to: (2013 ETEA)

A) Ectoderm and endoderm

B) Ectoderm and mesoderm

C) Mesoderm and endoderm

D) Mesoderm only

Q: Muscles develop from: (2013 ETEA)

A) Ectoderm

B) Mesoderm

C) Endoderm

D) All of them

Q: Lungs are ___ in origin: (2014 ETEA)

A) Ectodermal

B) Endodermal

C) Mesodermal

D) Performed

Q: Implantation of zygote takes place in the: (2015 ETEA)

A) 2nd week

B) 3rd week

C) 4th week

D) 5th week

Q: Embryonic mass can generate all of the following except: (2015 ETEA)

A) Amnion

B) Chorion

C) Yolk sac

D) Allantois