UA BSC 108 Exam 3 106 REAL EXAM QUESTIONS WITH 100%
RATED CORRECT ANSWERS (ACCURATELY PASSED) 2025
LATEST UPDATED GET A+
DNA is composed of ____ subunits. - (ANSWER)Nucleotide
DNA has a ____ backbone covalently bonded to _____-containing bases - (ANSWER)Sugar-
phosphate
Nitrogen
A DNA molecule contains how many strands of DNA?
These strands form what? This means that they are _____. - (ANSWER)2
A double helix
Complementary
What are the nitrogen-containing bases? - (ANSWER)Adenine
Guanine
Thymine
Cytosine
The nitrogen-containing bases of the two strands are held to each other by ____ -
(ANSWER)Hydrogen bonds
Adenine always pairs with _____ - (ANSWER)Thymine
Cytosine always pairs with _____ - (ANSWER)Guanine
, How does a molecule of DNA replicate? - (ANSWER)One parent molecule that has two
complementary strands separates
Each strand is used as a template to make a new strand
Each of the two daughter molecules will be composed of one "old" (parent) strand and one
"new" strand
The two parent strands separate at the ____ - (ANSWER)Origin of replication
Synthesis of two new complementary strands occurs in the _____ using the ____ as templates -
(ANSWER)Replication bubble
Parent strands
The replication bubbles merge as DNA replication progresses in both directions at the ______ -
(ANSWER)Replication forks
An organism's DNA leads to specific traits by _____ - (ANSWER)Dictating the synthesis of
proteins
What is the structure of RNA? - (ANSWER)Ribose + A nitrogenous base + A phosphate group
(A, G, C, U)
____ is a single-stranded nucleic acid - (ANSWER)RNA
RNA contains ____ instead of thymine - (ANSWER)Uracil
RNA contains ____ instead of deoxyribose - (ANSWER)Ribose
What are the 3 types of RNA? - (ANSWER)mRNA
tRNA
RATED CORRECT ANSWERS (ACCURATELY PASSED) 2025
LATEST UPDATED GET A+
DNA is composed of ____ subunits. - (ANSWER)Nucleotide
DNA has a ____ backbone covalently bonded to _____-containing bases - (ANSWER)Sugar-
phosphate
Nitrogen
A DNA molecule contains how many strands of DNA?
These strands form what? This means that they are _____. - (ANSWER)2
A double helix
Complementary
What are the nitrogen-containing bases? - (ANSWER)Adenine
Guanine
Thymine
Cytosine
The nitrogen-containing bases of the two strands are held to each other by ____ -
(ANSWER)Hydrogen bonds
Adenine always pairs with _____ - (ANSWER)Thymine
Cytosine always pairs with _____ - (ANSWER)Guanine
, How does a molecule of DNA replicate? - (ANSWER)One parent molecule that has two
complementary strands separates
Each strand is used as a template to make a new strand
Each of the two daughter molecules will be composed of one "old" (parent) strand and one
"new" strand
The two parent strands separate at the ____ - (ANSWER)Origin of replication
Synthesis of two new complementary strands occurs in the _____ using the ____ as templates -
(ANSWER)Replication bubble
Parent strands
The replication bubbles merge as DNA replication progresses in both directions at the ______ -
(ANSWER)Replication forks
An organism's DNA leads to specific traits by _____ - (ANSWER)Dictating the synthesis of
proteins
What is the structure of RNA? - (ANSWER)Ribose + A nitrogenous base + A phosphate group
(A, G, C, U)
____ is a single-stranded nucleic acid - (ANSWER)RNA
RNA contains ____ instead of thymine - (ANSWER)Uracil
RNA contains ____ instead of deoxyribose - (ANSWER)Ribose
What are the 3 types of RNA? - (ANSWER)mRNA
tRNA
