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WorksheetsUnit 9- DNA and Modern Genetics
Total questions: 37
Worksheet time: 44mins
Match the nitrogenous bases to the corresponding bases.
Guanine
cytosine
Cytosine
guanine
thymine
adenine
adenine
thymine
An organism's genetic material is called:
RNA
nucleotides
proteins
DNA
What do scientists call the twisted zipper shape of DNA?
double helix
sphere
helix
double sphere
Which two scientists built a model of DNA?
Maurice Wilkins
Francis Crick
James Watson
Rosalind Franklin
What are the 3 parts of a nucleotide?
Adenine, thymine, cytosine
sugar, phosphate, nitrogen base
protein, nitrogen, acid
sugar, carbon, base
In a DNA strand, the rungs of the ladder are made of
nitrogen bases
phosphate molecules
alternating sugar and phosphate molecules
sugar molecules
What are the "rungs" of the DNA ladder made of?
Nitrogenous bases
What was Rosalind Franklin eventually credited with?
Showing that A=T and C=G
Determining that DNA had a double helix shape.
Determined that traits required 2 alleles.
Taking an x-ray of DNA that suggested its shape.
What holds the DNA ladder together?
Hydrogen bonds
Peptide bonds
Covalent bonds
Ionic bonds
The process of copying DNA to produce two identical DNA molecules is known as
What is the first step in DNA replication?
The two strands must be identical.
The DNA must split down the middle.
The two DNA strands must connect.
The complementary bases must be brought to each side.
What is the name of the sugar found in DNA?
A change or mistake in the DNA causes
blending
meiosis
a mutation
incomplete dominance
Type of mutation where a base is left out
Type of mutation where an extra base is added
Type of mutation where one base replaces another
DNA can be damaged by physical or chemical agents known as
A disease caused by abnormalities in an individual's DNA.
DNA is unzipped and copied into a separate molecule known as
MNA
BNA
RNA
In RNA, the nitrogen base Thymine is replaced by__.
the process of copying DNA into RNA.
the process of making proteins from RNA
The cell organelle that is known as the protein assembly line
the use of biological processes, organisms, or systems to develop products and technologies.
The process of selecting and breeding organisms to have desired traits
True or False- Artificial selection and selective breeding are the same process
The process in which a piece of DNA is modified for the use of research, medicine, agriculture, and industry
What is a clone?
Corn that was created to be resistant to fungus is considered a (a) and is created using (b)
How would the DNA sequence CGATAT be transcribed to mRNA?
GCUAUA
CGATAT
CGAUAU
GCUTUT
I am a single strand.
DNA
RNA
I am arranged as a double helix or "twisted ladder".
DNA
RNA
What sugar is found in RNA?
glucose
deoxyribose
ribose
sucrose
