Twins & I.Q MCQ Basic Level

Twins & I.Q MCQ Basic Level

Dear Readers,

Zoology is considered to be one of the scoring section. If prepared thoroughly, Zoology can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. Differences in twins suggest

•  Incomplete dominance
•  That phenotype is influenced by many genes
•  That single gene may produce multiple effects
•  That they develop from two different eggs

That they develop from two different eggs

Q2. Two offspring developed in the same uterus but from fertilization of two different ova are

•  Dizygotic twins
•  Monozygotic twin
•  Fraternal twins
•  Both (a) and (c)

Both (a) and (c)

Q3. Identical twins are produced when

•  One fertilized egg divided into 2 blastomeres and both separate
•  One sperms fertilized two eggs
•  One egg fertilized with two sperms
•  Two eggs are fertilized

One fertilized egg divided into 2 blastomeres and both separate

Q4. Fraternal twins are produced when

•  A fertilized egg divided into two
•  An egg is fertilized by two sperm
•  A divided egg has two set of chromosomes
•  Two eggs are fertilized simultaneously

Two eggs are fertilized simultaneously

Q5. If in a child of 10 years ages of the intelligence is of 14 years child that I.Q. of this child would be

•  140
•  100
•  160
•  110

140

Q6. Sometimes the separation of twins is incomplete and these are borne attached are remain so even after. Such twins are known as

•  Fraternal
•  Dizygotic
•  Identical
•  Siamese

Siamese

Q7. I.Q. is the ratio of mental age to

•  Chronological age multiplied by ten
•  Chronological age plus ten
•  Chronological age plus 100
•  Chronological age multiplied by 100

Chronological age multiplied by 100

Q8. The I.Q. of a genius ranges from

•  70-89
•  90-109
•  110-139
•  140-more

140-more

Q9. Identical twins are

•  Heterozygous
•  Homozygous
•  Monozygotic
•  Dizygotic

Monozygotic

Q10. Genetically identical progeny is produced when an individual

•  Practices self-fertilization
•  Produces identical gametes
•  Practices reproduction
•  Practices in breeding without meiosis

Produces identical gametes