PATHOLOGY

PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does DNA in cells determine an organism’s complex traits?
A
DNA contains codes for proteins, which are necessary for the growth and functioning of an organism.
B
DNA separates into long single strands that make up each part of an organism.
C
DNA produces the energy an organism needs in order to grow.
D
DNA folds into the nucleus of each of the cells of an organism.
Explanation: 

Detailed explanation-1: -How does DNA in cells determine an organism’s complex traits? DNA contains codes for proteins, which are necessary for the growth and functioning of an organism. Sexual reproduction in animals depends on the production of gametes.

Detailed explanation-2: -An organism’s traits are encoded in their DNA, the large molecule, or macromolecule, that holds the instructions needed to build cells and organisms. DNA makes up the genes of an organism. Traits are passed on from one generation to the next by way of these genes.

Detailed explanation-3: -The cell builds proteins using instructions found in genes. Specifically, the order of nucleotides in a gene determines the order of amino acids in one or more proteins. An organism has many different genes, and so can produce many different proteins. These proteins have functions that affect the organism’s traits.

Detailed explanation-4: -During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.

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