Reproductive Health — BIOLOGY STD 12 Science — Question

Explain homozygous and heterogeneous?

Give one example of organism exhibiting female heterogamety.

Name a bacteria that is used in the form of sprays or sachets to control butterfly caterpillars.

Name the embryonic stage that gets implanted in the uterine wall of a human female.

What is meant by artificial insemination?

What is egg apparatus?

Name any two vertebrate body parts that are homologous to human forelimbs.

The enzyme DNA polymerase catalyses the polymerisation of nucleotides in the _________ direction, for the lagging strand.

Why is the assimilation of energy at the herbivore level, called secondary productivity?

(i) Write the name of one such genus of fungus which establishes mycorrhizae relationship with plants.
(ii) How do the plants get benefitted from this relation?