STD 12 - 2. human reproduction — NEET STD 11 Science — Question

Choose false sentence.

Lactic acid is produced by

Match the following cell structure with its characteristic feature

(a) Tight junctions	(i) Cement neighbouring cells together to form sheet
(b) Adhering Junctions	(ii) Transmit information through chemical to another cells
(c) Gap junctions	(iii) Establish a barrier to prevent leakage of fluid across epithelial cells
(d) Synaptic junctions	(iv) Cytoplasmic channels to facilitate communication between adjacent cells

Select correct option from the following

Assertion: Sometimes the change in allele frequency is so different in the new sample of population that they become a different species.
Reason: When migration of a section of population to another place occurs by chance, it is called genetic drift.

Which one of the following is a synthetic drug

In Myasthenia gravis ________ is affected.

On an average, healthy human breathes …… times / minutes.

Which of the following is an amino acid derived hormone?

In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?