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WorksheetsScience Test
Total questions: 26
Worksheet time: 13mins
The passing of traits from parents to offspring is…?
Heredity
DNA
RNA
mutations
Different forms of the same gene are known as…?
alleles
proteins
phenotypes
traits
How many chromosomes are present in a human sex cell?
23
100
46
50
What is found inside the nucleus that controls all cell activities?
DNA
RNA
punnet squares
mutations
What is the set of instructions for each characteristic that are donated by the parent to the offspring called?
genes
haploids
mutations
probabilitiy
The actual inherited combination of alleles (Bb, BB, or bb) is known as the offspring’s …?
genotypes
phenotype
karyotype
The organism’s appearance is known as its..?
phenotype
genotypes
eukaryotes
What do the terms homozygous dominant and homozygous recessive mean?
homozygous dominant is TT, homozygous recessive is tt
homozygous dominant is Tt, homozygous recessive is tt
What is a mutation?
a change in the DNA
nothing
chnage in a way a person eats
mistake that got corrected
Select which of the following could be a GENE level mutation
insertion
deletion
substition
addtion
What are Gregor Mendel’s contributions to genetics?- Select all that apply *
he determined you get one allele from mom and dad
he did experiments on pea plants
he determined dominant vs recessive
he got a medal in science
What does the genotype tt mean to geneticists?
homozygous recessive
heterozygous recessive
recessive
domaint
What does the genotype TT mean to geneticists?
homozygous dominant
homozygous recessive
heterozygous recessive
heterozygous dominant
What does the genotype Tt mean to geneticists?
heterozygous recessive
homozygous dominant
homozygous recessive
heterozygous dominant
What does a Punnett square show??
A way to predict the possible outcomes of offspring
a picture of a protein
a pictures of chromosomes
proteins displayed on a chart
What are Chromosomes made of?
DNA
RNA
ribosomes
cytoplasm
Genes are located on…?
chromosomes
Punnett squares
offspring
nucleus
What does the term heterozygous mean?
having DIFFERENT alleles for a genotype
a way to predict different outcomes
cytoplasm
karyotype
What is a karyotype?
a picture of chromosomes
a picture of protein
possible outcomes
cytoplasm and ribosomes
How can you tell the difference in a male and female karyotype?
MALE: XY, FEMALE: XX
FEMALE: XY, MALE: XX
you can't tell
they are both the same
MONOSOMY
Only having one chromosome for a pair
Having an extra chromosomes pair
TRISOMY
Only having one chromosome for a pair
Having an extra chromosome pair
What is nondisjunction?
The chromosomes fail to separate correctly during meiosis
A mutation where everything stays the same
Mutations where one is substituted for another base
All the chromosomes move over in a karyotypes
Select the correct order of events
DNA code-RNA message-amino acids-proteins-cells-tissues-organisms
DNA-RNA-code-message-acid-protein-organisms
RNA message-protein-DNA code-amino acids-organism- cells
TRUE OR FALSE
an error in the DNA code can change the amino acids that are joined to form a protein and can affect the function of a cell
TRUE
FALSE
What are the two main functions of chromosomes?
to carry the genetic material from one generation to another.
reproduction and repair
carryout proteins
