QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2025 - 2026
What type of restriction enzyme recognizes palindromic sites? -
ANSWERS-Restriction Enzyme Type II
What type of restriction enzyme lacks methylation activity? -
ANSWERS-Restriction Enzyme Type II
What is necessary to make cDNA? - ANSWERS-Reverse transcriptase
Number of SNPs in a human genome? - ANSWERS-11 billion (10^7)
How many genes (base pairs) are in a human haploid genome? -
ANSWERS-3 billion base pairs
,The polymerization of acrylamide requires: - ANSWERS-Catalyst
(APS or TEMED) or Light activation
What increases half-life of mRNA? - ANSWERS-5' Methyl Cap
What kind of DNA is most likely to be transcriptionally active? -
ANSWERS-Euchromatin
What is the most common type of eukaryotic DNA? - ANSWERS-
Satellite DNA
What specimen has the most DNA according to molecular weight? -
ANSWERS-White Blood Cells
What amino acids compose histones? - ANSWERS-Lysine and
Arginine
Amino acid that all proteins start with: - ANSWERS-Methionine
What protects the DNA strand during replication? - ANSWERS-
Single-stranded binding protein
Leading Strand - ANSWERS-3' to 5' template
, Lagging Strand - ANSWERS-5' to 3' template
What DNA strand is being copied in transcription? - ANSWERS-
Antisense Strand
First step after newly formed mRNA is made? - ANSWERS-Addition
of poly(A) tail
Every time the chromosome is copied it would become shorter if
not for what enzyme? - ANSWERS-Telomerase
What polymerase has repair activity? - ANSWERS-Beta/Epsilon
What polymerase acts on leading strand? - ANSWERS-Delta
What polymerase acts on lagging strand? - ANSWERS-Alpha
Which polymerase is used for mitochondrial replication and repair?
- ANSWERS-Gamma
What polymerase binds the 5' end to 3' end of dsDNA? - ANSWERS-
Topoisomerase