Strategies for Enhancement in Food Reproduction — BIOLOGY STD 12 Science — Question

What are the disorders caused due to hyposecretion and hypersecretion of ACTH?

The middle part of the human sperm is characterized by the presence of a number of mitochondria.

In what manner a diploid male can be obtained in honey bees?

Write the causative agent of filariasis in humans. Mention its mode of transmission and symptoms of the disease.
OR

1. Write the scientific names of the two species of filarial worms causing filariasis.
2. How do they affect the body of infected persons?

In snapdragon (Antirrhinum majus), a cross between varieties with red and white flowers produces an all pink progeny.
Explain how it is a case of incomplete dominance and not of blending inheritance.

1. Name the scientist who suggested that the genetic code should be made of a combination of three nucleotides.
2. Explain the basis on which he arrived at this conclusion.

It is often observed that the chances of a person suffering from measles in his or her lifetime are low if he or she has suffered from the disease in their early childhood. Justify the statement.

Explain the types of chromosomes on the basis of position of centromere.

Gene therapy

What are STDs? Write the two other names given to STDs.