NEET · Biology · True or False — Genetics

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Humans have 23 pairs of chromosomes.

2. Statement is true

   No

   Statement

   Down syndrome is caused by monosomy of chromosome 21.

3. Statement is true

   No

   Statement

   Mendel's law of segregation is based on dihybrid crosses.

4. Statement is true

   Yes

   Statement

   ABO blood groups demonstrate codominance and multiple alleles.

5. Statement is true

   Yes

   Statement

   Sickle-cell anaemia is an autosomal recessive disorder.

6. Statement is true

   No

   Statement

   The Y chromosome is longer than the X chromosome.

Instructions

Quick TRUE / FALSE round on classical genetics.