AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

GENE MUTATION

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: -Dexoyribonucleic Acid, or DNA, controls the way cells function. It also determines what type of specialized cells will be made. Stem cells are cells that have the ability to become any type of specialized cell in the body.

Detailed explanation-3: -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-4: -The cell types in a multicellular organism become different from one another because they synthesize and accumulate different sets of RNA and protein molecules. They generally do this without altering the sequence of their DNA.

Detailed explanation-5: -So the answer is gene expression and differentiation.

There is 1 question to complete.