PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities?
A
The ability of some cells to remove unnecessary DNA sequences
B
The regulation of gene expression within each cell type
C
The mutation of genes within each cell type
D
The use of different methods of cell division
Explanation: 

Detailed explanation-1: -Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities? The ability of some cells to remove unnecessary DNA sequences.

Detailed explanation-2: -Cell Organelle: Just like our bodies need different specialized types of organs and tissues to function properly, the cells also have specialized parts called organelles. Each of these performs a different function. Each organelle has a specific and unique job without which the cell will not be able to survive.

Detailed explanation-3: -All of a person’s cells contain the same set of genes (see more on genes). However, each cell type “switches on” a different pattern of genes, and this determines which proteins the cell produces. The unique set of proteins in different cell types allows them to perform specialized tasks.

Detailed explanation-4: -Gene regulation makes cells different These different patterns of gene expression cause your various cell types to have different sets of proteins, making each cell type uniquely specialized to do its job. For example, one of the jobs of the liver is to remove toxic substances like alcohol from the bloodstream.

Detailed explanation-5: -Human nerve cells differ from human muscle cells because different sets of genes are expressed; in each type of cell, different genes are transcribed into mRNA and translated into protein.

There is 1 question to complete.