Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

In a dihybrid cross, when would the proportion of parental gene combinations be much higher than non–parental types, as experimentally shown by Morgan and his group?

Which gland secreted the colourless substance in females during sexual excitement?

Write the central dogma of molecular biology.

Name the scientist who also came to similar conclusion as Darwin.

Name the type of interaction seen between whale and the barnacles growing on its back?

Mark the odd one in the following group.
Charas, Heroin, Marijuana, Hashish.

What does the base tier of ecological pyramid represent?

The egg of an animal contains 10 chromosomes, of which one is X-chromosome. How many autosomes would there be, in the karyotype of this animal?

Which one is removed during splicing-introns or exons?

Name the category of disease in which ‘Rheumatoid arthritis' in human, put under.

OR

Name the category of the disease, rheumatoid arthritis.