AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

THE GENETICS OF VIRUSES AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Bacteria are called ____ because their genetic material is not contained in nuclei.
A
carbohydrates
B
proteins
C
eukaryotes
D
prokaryotes
Explanation: 

Detailed explanation-1: -Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages.

Detailed explanation-2: -Bacteria lack a membrane-bound nucleus and other internal structures and are therefore ranked among the unicellular life-forms called prokaryotes.

Detailed explanation-3: -DNA is the genetic material present in prokaryotic cells. The DNA in prokaryotic cells is contained in the central area of the cell called the nucleoid.

Detailed explanation-4: -In organisms such as humans, DNA is organised into structures called chromosomes inside a nucleus, a membrane-bound compartment within each cell. Bacteria lack a nucleus, and how bacterial DNA is organised has puzzled biologists for many years.

Detailed explanation-5: -Bacteria are considered to be prokaryotes, which means they do not have a nucleus and other membrane-bound organelles.

There is 1 question to complete.