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WorksheetsGrade 7 Wrapping up Chapter 5
Total questions: 25
Worksheet time: 13mins
Any change in an organisms DNA in a gene or a chromosome is called a ________.
mutation
trait
tumor
protein
Mutations can be _________.
harmful
helpful
both
When an extra base pair is added to a gene, this is called _____.
delition
addition
substitution
When a base pair is removed from a gene, this is called ______.
deletion
addition
substitution
When one base pair is switched for another in a gene, this is called _____.
substitution
addition
deletion
Cancer is a disease that occurs when cells ________.
stop dividing
divide uncontrollably
stop making protein
move DNA outside of the nucleus
A mass of tissue that forms from cancer is called a _____.
tumor
genetic disease
tRNA
mRNA
Which of the following can be used to treat cancer?
surgery
radiation
chemotherapy
all 3 answers
Antigens are found on ____.
red blood cells
white blood cells
chromosomes
genes
The chromosome pair XY results in a ___
male
female
The chromosome pair XX results in a ____.
male
female
A person who has an allele for a disease, but does not actually have a disease is a ____.
carrier
doctor
clone
mutation
If a sequence of DNA bases reads AAT, then the tRNA anti-codon will be ______.
amino acid
A gene mutation can only be passed to offspring if it occurs in a(n) ______ cell
dividing
cancer affected
sex
autosomal
The use of drugs to treat cancer is called _____.
chemotherapy
surgery
radiation
none of the above
Human blood type is a trait that is controlled by multiple alleles and is ______.
codominant
sex-linked
not inherited
Which allele for blood type is recessive?
Ia
Ib
i
True or False: "A male can be a carrier for the color blindness trait."
TRUE
FALSE
True or False: "Females cannot be color blind."
TRUE
FALSE
