WorksheetsDNA Replication
Total questions: 17
Worksheet time: 9mins
Which of the following units are repeatedly joined together to form a strand of DNA?
Amino Acids
Nucleotides
Fatty Acids
Polysaccharides
In what phase of the cell cycle does DNA replication take place?
G1
S
G2
Prophase
The process of DNA replication is called semi conservative because it results in
none of these
Two DNA molecules. One original molecule and one with two new strands
two exact copies with new strands
two DNA molecules, each with 1 original strand and one new.
Why does DNA replicate?
To create a duplicate copy in case the original gets damaged
New cells will have a copy of the DNA
To create a new copy to replace the damaged original
Nitrogen bases are joined by which type of bond?
polar bonds
hydrogen bonds
phosphate bonds
deoxyribose bonds
Adenine bonds with _____
Cytosine
Thymine
Guanine
Uracil
Why is DNA important?
it is very small and very complicated
it's in everything
it serves as the blueprint for traits of all living things
because we eat it every day for energy
Cytosine bonds with ____
Adenine
Thymine
Guanine
Uracil
What does DNA stand for?
Deoxyribonucleic acid
Denitrogenous acid
Deribonucleic acid
Diribonucleic acid
What is needed for DNA replication to unzip at the hydrogen bonds?
phosphates
enzymes
deoxyribose (sugar)
hydrogen
What is a mutation?
Adenine
a change/mistake in DNA
a copy of the original DNA
Guanine
What causes mutations?
the environment
random assortment
chemicals
independent assortment
This is an example of -
THE DOG HID THE TOY (ORIGINAL)
THE DOH IDT HET OY? (NEW)
addition
substitution
deletion
This is an example of -
THE DOG HID THE TOY (ORIGINAL)
THE DOG SHI DTH ETO Y??
addition
deletion
substitution
This is an example of -
THE DOG HID THE TOY (ORIGINAL)
THE DOG HIM THE TOY (NEW)
addition
deletion
substitution
Frameshift mutations result from -
additions
substitutions
deletions
all of these
Point mutations result from -
none of these
substitutions
additions
deletions
