Enhancement of Food Production — BIOLOGY STD 12 Science — Question

Efficiency index

Mention any one major source of variation in:

1. A sexually reproduced offspring.
2. An asexually reproduced individual.

What is the host called that produces a foreign gene product? What is this product called?

Reproductive health refers only to healthy reproductive functions. Comment.

________ type of tissues are present in epiphytic roots.

• Meristematic

• Parenchyma

• Velamen

• Epithelial

State a difference between a gene and an allele.

Best broilers.

Malaria, typhoid, pneumonia and amoebiasis are some of the human infectious diseases. Which ones of these are transmitted through mechanical carriers?

Name the toxin responsible for the appearance of symptoms of malaria in human. Why do these symptoms occurs periodically?OR
How does haemozoin affects the human body when released in blood during malarial infection?

In which interaction of species, both the species are at a loss?