Neet 2005 PYQ Free Mock Test

Assertion : Organ transplantation patients are given immunosuppressive drugs.Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.

Assertion : Persons suffering from haemophilia fail to produce blood clotting factor VIII.Reason : Prothrombin producing platelets in such persons are found in very low concentration.

Assertion : In humans, the gamete contributed by the male determines whether the child produced will be male or female.Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on X-chromosome and some on Y-chromosome.

Assertion : Mitochondria and chloroplasts are semi-autonomous organelles.Reason : They are formed by division of pre-existing organelles as well as contain DNA but lack protein synthesizing machinery.

Assertion : Replication and transcription occur in the nucleus but translation occurs in the cytoplasm.Reason : mRNA is transferred from the nucleus into the cytoplasm where ribosomes and amino acids are available for protein synthesis.