Question

What is genophore?
A. DNA in prokaryotes
B. DNA and RNA in prokaryotes
C. DNA and protein in prokaryotes
D. RNA in prokaryotes

Answer 1

Hint: The genome of prokaryotic organisms is typically a spherical, double-stranded piece of DNA, of which multiple copies can exist at any time. The length of the genome varies considerably, but there are usually at least a few million base pairs.

Complete Answer:
Prokaryotes are the species that lack the nucleus in their cells. They have an irregularly formed region inside a cell called nucleoid that holds all or most of the genetic material. Unlike the nucleus of the eukaryotic cell, it is not enclosed by a nuclear membrane.

The nucleoid is mainly composed of several compacted copies of DNA in a continuous thread, with the exception of certain RNAs and proteins. The DNA in prokaryotes is double-stranded and typically has a spherical form. The whole DNA in the prokaryotic cell can be found in individual chromosomes.

The genophore is a prokaryote DNA. It is commonly referred to as a prokaryotic chromosome. The genophore is circular in most prokaryotes, and linear in a few. The circular design of the genophore allows replication without telomeres. Genophores are usually much smaller in size than eukaryotic chromosomes.

Thus, the correct answer is option A i.e., DNA in prokaryotes.

Note: Eukaryotes, such as plants and animals, have a nucleus that includes their genetic material, the surrounding double membrane,called the nuclear envelope. This membrane divides the materials in the nucleus from the cytoplasm. Like in prokaryotes, eukaryotic DNA is also double-stranded.