WorksheetsDNA - The Code of Life Quiz
Total questions: 17
Worksheet time: 9mins
Cancer is a disease in which cells
grow and divide uncontrollably
die before they cay mature
stop producing DNA
die during mitosis
Which of these traits is controlled by a gene with multiple alleles?
straight hairline
smile dimples
widow's peak
blood type
Which of these is an example of the benefits of genetic engineering?
cross-breeding to create disease-resistant crops
creating human insulin to treat people with diabetes
analyzing karyotypes and pedigree charts
growing a new plant from cutting
The order of the bases along a gene determines the order in which
sugars are put together to form a carbohydrate.
phosphates are arranged in DNA.
amino acids are put together to form a protein.
chromosomes are arranged in the nucleus.
A carrier is a person who has
one recessive and one dominant allele for a trait.
two recessive alleles for a trait.
two dominant alleles for a trait.
more than two alleles for a trait.
During DNA replication, adenine (A) always pairs with
guanine (G)
cytosine (C)
thymine (T)
adenine (A)
What does messenger RNA do during protein synthesis?
copies the coded message from the DNA and carries it into the cytoplasm
copies the coded message from the DNA and carries it into the nucleus
carries amino acids and adds them to the growing protein
copies the coded message from the protein and carries it into the nucleus
How can a mutation affecting skin be harmful to an animal?
It can make the animal more visible to its prey or predators.
It can cause disease in the animal.
It can make the animal resistant to certain diseases.
It can make the animal resistant to drugs.
Cancer can spread when cells break off a tumor and are carried through the body by the
bloodstream.
muscles.
bones.
lungs.
When many genes control a trait, the trait will show a large number of
genotypes.
phenotypes.
alleles.
people.
The genetic code is found in the order of nitrogen ________________ along a gene.
bases
codes
groups
phosphates
Breeders use a technique called ______________________ to cross genetically different individuals.
inbreeding
hybridization
selective breeding
gene therapy
True/False: Even if a gene has multiple alleles, a person cannot have more than three of those alleles.
True
False: two
True/false: Transfer RNA carries coded messages from the nucleus to the cytoplasm.
True
False: Messenger
True/False: Cancerous cells grow in an abnormal way.
True
False: an uncontrollable
True/False: Inbreeding decreases the chance of an organism receiving two recessive genes for a genetic disorder.
True
False: increases
What branch of science are we studying in this class?
Life science
Earth/Space science
Physical science
