QUESTIONS AND CORRECT ANSWERS
RATED A+ 2024/2025
DNA is a type of _____________ - ANSWER-nucleic acid
__________ are found in virtually all cells - ANSWER-Nucleic acids
What is the function of nucleic acids? - ANSWER-To encode heritable information
and pass it on from generation to generation
and pyrimidine or purine base
Which base pairs with Adenine? - ANSWER-Thymine
What three things make up nucleotides? - ANSWER-Phosphate, pentose sugar,
What are the four bases in DNA? - ANSWER-Adenine, guanine, cytosine, and
thymine
What are the four bases in RNA? - ANSWER-Adenine, guanine, cytosine, and uracil
How many strands does RNA have? DNA? - ANSWER-RNA is a single strand, DNA
is double
,Which base pairs with Guanine? - ANSWER-Cytosine
Where is DNA located? - ANSWER-In the Nucleus
What encases the DNA? - ANSWER-Chromosomes
How many chromosomes do humans have? - ANSWER-46. 23 pairs
Gene - ANSWER-Small segment of DNA that contains all the pairs of
chromosomes
When was the double helix discovered? - ANSWER-1953
Who began the Human Genome project? - ANSWER-Francis S Collins
Hereditary information is stored in ______ - ANSWER-DNA
The individual building blocks of DNA are called - ANSWER-Nucleotides
A DNA molecule consists of two nucleotide strands twisted into a - ANSWER-
double helix
, The ___________ of the DNA stands pair in a consistent fashion. - ANSWER-Bases
What is the RNA transcription for the DNA strand 5- GCT ATG CAT CGT - 3 -
ANSWER-5 - ACG AUG CAU AGC - 3
Which template DNA sequence would the short transcript 5- AUC CGU ACG -3 be
derived from? - ANSWER-5- CGT ACG GAT -3
What is the complementary sequence for the following DNA sequence? 5- GCC
ATC TCG AAT -3 - ANSWER-5- ATT CGA GAT GGC -3
Assuming 100% reaction efficiency, how many DNA copies are created after the
completion of four complete PCR cycles? - ANSWER-16
What is the function of DNA polymerase in the process of PCR? - ANSWER-It
recognizes the primers and uses the available dNTPs to replicate the template
DNA sequence
What type of mutation occurs when cytosine is completely mutated to guanin in
the DNA sequence? - ANSWER-Nonsense
When using heat to denature a protein, which force is the first to be disrupted as
temperature increases? - ANSWER-Hydrophobic interactions