Question

Which of the following statements about genetics is TRUE?

A. Genes are proteins that produce DNA.
B. Each organism has its own unique DNA code.
C. DNA relies upon five different building blocks as the alphabet of inheritance.
D. Differences among organisms reflect different nucleotide sequences in their DNA.
E. Each DNA molecule is a single strand of nucleotides.

Answer 1

The answer would be d) differences among organisms reflect different nucleotide sequences in their dna

Answer 2

The TRUE statement is differences among organisms reflect different nucleotide sequences in their DNA (Option D).

• Deoxyribonucleic acid (DNA) is the hereditary material in almost all organisms.

• The DNA is a double strand molecule, where each DNA strand is a linear molecule made of smaller units known as nucleotides.

• In DNA, there are four different types of nucleotides, each defined by a specific nitrogenous base: adenine (A), thymine (T), guanine (G), and cytosine (C).

• The precise (linear) order of nucleotides within the DNA strands in conjunction with the environment determines the phenotypic features (traits) of all organisms.

In conclusion, the TRUE statement is differences among organisms reflect different nucleotide sequences in their DNA (Option D).

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