STD 12 - 8. microbes in human welfare — BIOLOGY STD 12 Science — Question

The residue left after methane production from cattle dung is:

Genetic material with potential value is:

In heavy smokers the alveoli of the lungs are enlarged and damaged which reduces the surface area for the exchange of respiratory gases. This condition is called

What is true in the process of fertilization

If the age distribution (per cent individuals of a given age or group) is plotted for the population, the resulting structure is called a/ an.

The chemical nature of chromosome is as follows

Mendel, while studying the garden pea (Pisum sativum) observed its seven traits. Which one doesn't match with its dominant character?

Genes that are involved in turning on or off the transcription of a set of structural genes are called

One of the following atoms often limit the primary productivity of an ecosystem