How many genes exist in e. coli?

1

23

4,403

234,607

The correct answer is -

4,403.

Gene can be described as segment of DNA (deoxyribonucleic acid), which codes for particular protein.

It is transcribed (that is DNA to mRNA) and translated (mRNA to Protein) to form a protein product.

There are total 4,403 genes that have been identified in the genome of E.coli.

Thus, option third is the right answer.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.