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A polypeptide is made of 31 amino acids. What is the minimum number of DNA nucleotides needed to code for this number of amino acids?
Multiple Choices:
A. 31 base pairs
B. 15 base pairs
C. 93 base pairs
D. 62 base pairs
...
Read MoreWhich of the following can be considered the essential function of RNA?
Multiple Choices:
A. To organize the DNA and make it more compact
B. To duplicate DNA during cell division
C. To use the instructions coded in DNA to synthesize proteins
D. To transport proteins to the cytoplasm
Correct Answer: ✅ C. To use the instructions coded in DNA to synthesize proteins ...
Read MoreFill in the blank — A three-base sequence of mRNA is called a(n) ______.
Codon...
Read MoreQuestion:
During which stage of cell division are sister chromatids first visible with the light microscope?
Multiple Choices:
A. Anaphase
B. Telophase
C. Prophase
Correct Answer: ✅ C. Prophase...
Read MoreIn the nucleus of a typical human cell, there are 46 DNA filaments. Which term refers to one of these structures?
Multiple Choices:
A. Nucleolus
B. Chromatin
C. Chromosome
D. Nucleosome
✅ C. Chromosome...
Read MoreQuestion:
What determines the amino acid sequence of a protein?
Multiple Choices:
A. The nucleotide sequence in DNA
B. The alternating pattern of sugar and phosphate molecules in the backbone of the DNA molecule
C. The number of nucleotide chains in each DNA molecule
D. The pattern of attachment points of the histones to the DNA
Correct Answer: ✅ A. The nucleotide sequence in DNA...
Read MoreChromatin contains ______.
Multiple Choices:
A. DNA and proteins
B. Proteins and lipids
C. DNA and steroids
D. RNA and lipids
Correct Answer: ✅ A. DNA and proteins...
Read MoreQuestion:
Which of the following terms refers to a segment of DNA that codes for the production of a molecule of RNA?
Multiple Choices:
A. Chromatin
B. Chromosome
C. Gene
D. Genome
Correct Answer: ✅ C. Gene...
Read MoreHow many hydrogen bonds do adenine and thymine form with each other?
Multiple Choices:
A. None
B. One
C. Three
D. Two
Correct Answer: ✅ D. Two...
Read MoreWhich of the following are characteristics of ribonucleic acid (RNA)? (Select all that apply.)
Options:
A. It contains a sugar called deoxyribose.
B. It leaves the nucleus and can be found in the cytoplasm.
C. It contains nitrogenous bases A, U, C, G.
D. It plays an important role in the production of proteins.
E. It is always double-stranded.
...
Read More