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Worksheets7th Life science common assessment review
Total questions: 29
Worksheet time: 15mins
Who discovered DNA?
Jimmy Buffet
Watson and Crick
Leeuwenhoek and Schleiden
Schleiden and Schwann
In which organelle can you find DNA?
Mitochondria
Centriole
Cell wall
Nucleus
In mRNA, adenine bonds with _____.
Uracil
Thymine
Cytosine
Guanine
In mRNA, cytosine bonds with _____.
Uracil
Thymine
Cytosine
Guanine
In DNA, thymine bonds with _____.
Cytosine
Guanine
Uracil
Adenine
Homozygous recessive
bb
Bb
BB
none of these
Homozygous dominant
bb
Bb
BB
none of these
Heterozygous
bb
Bb
BB
none of these
In ______, both alleles are expressed.
shared dominance
codominance
complete dominance
zone dominance
Homozygous
aa
bb
BB
All of the above
Physical characteristics of an organism - example tall, green spots
phenotype
genotype
mutation
Mendel
All of the alleles that result in an organism's genetic makeup
phenotype
genotype
mutation
Mendel
Two different alleles for a trait
Homozygous
Heterozygous
Sex-linked
Incomplete dominance
In a strand of DNA
CGC to CGCA
Point mutation
Insertion
Duplication
Mendel
Type of mutation
TCG to TTG
Deletion
Insertion
Point mutation
Duplication
DNA can leave the nucleus.
True
False
RNA can leave the nucleus.
True
False
DNA is single stranded.
True
False
RNA is single stranded.
True
False
alternate form of a gene in a given pair
phenotype
DNA
RNA
allele
sugar in DNA
ribose
deoxyribose
fructose
lactose
sugar in RNA
ribose
deoxyribose
sucrose
fructose
when a heterozygous organism has an intermediate blended phenotype
dominance
recessive
incomplete dominance
complete dominance
Traits that are only found on the X chromosome
dominance
recessive
sex linked
mutation
sex linked chromosomes will always produce the trait in a male
true
false
Trisomy 21 is when a person has an extra copy of chromosome 21 (They have three instead of two.) This is an example of
Deletion
Phenotype
Insertion
Lazy X
Mendel studied flower colors of pea plants.
True
False
Mendel studied flower seed shape of pea plants.
True
False
Mendel studied flower seed colors of pea plants.
True
False
