THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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number of hydrogen bonds that hold the nitrogen bases together
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number of carbons in DNA
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sequence of nucleotide bases
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sequence of phosphates
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Detailed explanation-1: -Which part of the DNA molecule is responsible for the direct coding of specific traits in an organism? The number of hydrogen bonds that hold the strands of DNA together.
Detailed explanation-2: -Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual. A gene is the basic unit of heredity in a living organism.
Detailed explanation-3: -Genetic information is carried in the linear sequence of nucleotides in DNA. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs.
Detailed explanation-4: -The part of the nucleotide that stores genetic information is A. nitrogen base. There are five main bases namely adenine, guanine, cytosine, thymine, and uracil. The sequence of these bases in DNA or RNA determines the genetic information contained in the molecule.
Detailed explanation-5: -The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA.