ESSENTIALS OF GENETICS 10TH EDITION
2026 FULL TEST BANK QUESTIONS AND
VERIFIED ANSWERS GRADED A+
⩥ DNA Structure.
Answer: DNA is composed of deoxyribose sugar, phosphate groups, and
nitrogenous bases (A, T, G, C). It is double-stranded and has a helical
structure.
⩥ RNA Structure.
Answer: RNA is composed of ribose sugar, phosphate groups, and
nitrogenous bases (A, U, G, C). It is single-stranded.
⩥ Base Pairing Rules in DNA.
Answer: Adenine pairs with Thymine (2 hydrogen bonds), and Cytosine
pairs with Guanine (3 hydrogen bonds).
⩥ Antiparallel Strands.
Answer: DNA strands run in opposite directions (5' to 3' and 3' to 5'),
allowing proper base pairing.
⩥ Chargaff's Rules.
,Answer: In DNA, the amount of adenine equals thymine, and the
amount of cytosine equals guanine.
⩥ Telomeres.
Answer: Telomeres are repetitive nucleotide sequences at the ends of
chromosomes that protect them from deterioration.
⩥ Telomerase.
Answer: An enzyme that adds repetitive nucleotide sequences to
telomeres, active in germline and stem cells.
⩥ DNA Replication.
Answer: DNA replication is bi-directional, begins at the origin of
replication, and results in two identical daughter strands.
⩥ Proofreading.
Answer: DNA polymerases can recognize and correct mismatched bases
during DNA replication.
⩥ Mismatch Repair.
Answer: A process where newly replicated DNA is scanned for mistakes
and mismatches are corrected by specific proteins.
⩥ Messenger RNA (mRNA).
, Answer: RNA that carries the genetic code from DNA to the ribosome
for protein synthesis.
⩥ Ribosomal RNA (rRNA).
Answer: RNA that forms part of the ribosome and is involved in
catalyzing peptide bonds during translation.
⩥ Transfer RNA (tRNA).
Answer: RNA that transports amino acids to the ribosome during protein
synthesis.
⩥ Small Nuclear RNA (snRNA).
Answer: RNA involved in the splicing of pre-mRNA and the formation
of the spliceosome.
⩥ Micro RNA (miRNA).
Answer: Short RNA molecules that regulate gene expression by
silencing mRNA.
⩥ Small Interfering RNA (siRNA).
Answer: Double-stranded RNA that degrades mRNA after transcription,
involved in gene silencing.
⩥ Transcription in Prokaryotes.
2026 FULL TEST BANK QUESTIONS AND
VERIFIED ANSWERS GRADED A+
⩥ DNA Structure.
Answer: DNA is composed of deoxyribose sugar, phosphate groups, and
nitrogenous bases (A, T, G, C). It is double-stranded and has a helical
structure.
⩥ RNA Structure.
Answer: RNA is composed of ribose sugar, phosphate groups, and
nitrogenous bases (A, U, G, C). It is single-stranded.
⩥ Base Pairing Rules in DNA.
Answer: Adenine pairs with Thymine (2 hydrogen bonds), and Cytosine
pairs with Guanine (3 hydrogen bonds).
⩥ Antiparallel Strands.
Answer: DNA strands run in opposite directions (5' to 3' and 3' to 5'),
allowing proper base pairing.
⩥ Chargaff's Rules.
,Answer: In DNA, the amount of adenine equals thymine, and the
amount of cytosine equals guanine.
⩥ Telomeres.
Answer: Telomeres are repetitive nucleotide sequences at the ends of
chromosomes that protect them from deterioration.
⩥ Telomerase.
Answer: An enzyme that adds repetitive nucleotide sequences to
telomeres, active in germline and stem cells.
⩥ DNA Replication.
Answer: DNA replication is bi-directional, begins at the origin of
replication, and results in two identical daughter strands.
⩥ Proofreading.
Answer: DNA polymerases can recognize and correct mismatched bases
during DNA replication.
⩥ Mismatch Repair.
Answer: A process where newly replicated DNA is scanned for mistakes
and mismatches are corrected by specific proteins.
⩥ Messenger RNA (mRNA).
, Answer: RNA that carries the genetic code from DNA to the ribosome
for protein synthesis.
⩥ Ribosomal RNA (rRNA).
Answer: RNA that forms part of the ribosome and is involved in
catalyzing peptide bonds during translation.
⩥ Transfer RNA (tRNA).
Answer: RNA that transports amino acids to the ribosome during protein
synthesis.
⩥ Small Nuclear RNA (snRNA).
Answer: RNA involved in the splicing of pre-mRNA and the formation
of the spliceosome.
⩥ Micro RNA (miRNA).
Answer: Short RNA molecules that regulate gene expression by
silencing mRNA.
⩥ Small Interfering RNA (siRNA).
Answer: Double-stranded RNA that degrades mRNA after transcription,
involved in gene silencing.
⩥ Transcription in Prokaryotes.
