Answer: Adenine=20% Thymine=20% bc they are complementary pairs (40% total) This means cytosine and guanine (complementary pairs) make up the remaining 60%. Divided by 2 you get 30% for guanine and cystosine.
You are watching: If adenine makes up 20% of the bases in a dna double helix, what percent of the bases is guanine?
EXPLAIN: After replication _____ each new DNA double helix consists of one old strand and one new strand
Answer: This is because to replicate DNA the enzyme helicase separates the original strand into two strands (replication fork) then each "old" strand" serves as a template for a "new" strand of DNA to complete the replication process. The "old" and "new" become a semiconservative new double helix strand of DNA.
Answer: Both eons and introns are transcribes from DNA to RNA. Before RNA leaves the nucleus INTRONS are removed leaving the EXONS to express the gene of the RNA w/ a continuous coding sequence
A mutation within a gene that will insert a premature stop codon in mRNA would - result in a shortened polypeptide chain
A premature STOP codon would signal the termination of the translation process by releasing ribsomal subunits to disassociate which results in releasing the shortened polypeptide chain.
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The figure below shows the flow of genetic information in a eukaryotic cell. The transfer of information from DNA into and RNA molecule is known as _______
Consider the following figure. It illustrates that a single amino acid substitution in the hemoglobin gene _____
EXPLAIN: Consider the following figure. It illustrates that a single amino acid substitution in the hemoglobin gene -may alter a protein so that it no longer functions properly
Answer: BY slightly changing the one amino acid in the DNA sequence of (T/A) to mutant (A/U) affects the proteins overall structure and function resulting in the person from having normal book to having sickle-cell anemia.
Fundamentals of Biochemistry: Life at the Molecular Level5th EditionCharlotte W. Pratt, Donald Voet, Judith G. Voet