Biology at Ease

What is the correct sequence of embryonic development stages down to implantation?

8 hours ago | [YT] | 385

Biology at Ease

The secretions which of the following structures is rich in fructose, calcium, and certain enzymes?

1 day ago | [YT] | 519

Biology at Ease

The embryo sac represents :

1 day ago | [YT] | 812

Biology at Ease

Which cells in the testis provide nutrition to the developing germ cells during spermatogenesis?

2 days ago | [YT] | 555

Biology at Ease

Statement I: When a host is exposed to antigens, which may be in the form of living or dead microbes, antibodies are produced in the host body. This is called active immunity and is slow.
Statement II: Injecting anti-tetanus serum (ATS) or providing colostrum to a newborn provides ready-made antibodies, serving as examples of passive immunity.

2 days ago | [YT] | 283

Biology at Ease

During agarose gel electrophoresis, DNA fragments resolve solely according to their size. What causes DNA to migrate towards the anode during this processing?

3 days ago | [YT] | 367

Biology at Ease

Statins, widely prescribed blood-cholesterol lowering agents, act through competitive inhibition of the enzyme responsible for cholesterol biosynthesis. This bioactive molecule is commercially harvested from:

4 days ago | [YT] | 302

Biology at Ease

According to Hugo de Vries, what is the driving mechanism behind speciation, and how does it contrast with Darwinian variations?

4 days ago | [YT] | 306

Biology at Ease

Statement 1: The principal of complimentary governs the process of transcription.
Statement 2: In Eukaryotes, the replication of DNA takes place at S-phase of cell cycle.

4 days ago | [YT] | 269

Biology at Ease

Amongst the animal groups given below, which one appears to be more vulnerable to extinction:

4 days ago | [YT] | 491