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WorksheetsLife Science Unit Quiz
Total questions: 20
Worksheet time: 2hrs 40mins
The passing of physical characteristics, or traits, from parent to offspring.
Genetics
Dominant allele
Heredity
Recessive allele
Widow's peak is a human trait that is an example of a(n)
sex linked gene
mutation
acquired trait
inherited trait
Which of the following is an example of an acquired trait?
height
dimples
muscle size
tasting PTC
DNA is located in the ___________ of a cell.
cell wall
nucleus
cytoplasm
mitochondria
The different forms of a gene are called
Genes
Alleles
Heredity
Pedigree
Each organism has 2 alleles for a particular trait. Where do these two alleles come from?
One from each parent
Both from one parent
blood cells
The kidney
A trait that is always hidden when the dominant allele is present is called a
gene
recessive allele
dominant allele
heredity
A trait that always shows up when the allele is present.
chromosome
DNA
recessive allele
dominant allele
The ability to roll your tongue is a dominant trait. If both parents are hybrid, meaning they have one of each trait for tongue rolling, and they have 4 children together, what will their children inherit?
The children will be non-tongue rollers.
The children will be tongue rollers.
It is possible for the children to be a combination of tongue rollers and non-tongue rollers.
All of the children will have the dominant trait.
A chart or a family tree that shows the presence or absence of a trait according to the relationships within a family across several generations.
Punnett square
Pedigree
Heredity
Purebred
How many offspring did the oldest generation have?
1
2
4
6
Examine the pedigree. Which of the following statements best fits the data?
Two parents with widow’s peaks only have widow’s peak children.
Two parents with no widow’s peak only have children with no widow’s peak.
If parents do not match on the widow’s peak trait, the children will all have no widow’s peak.
If parents do not match on the trait, the children will all have widow’s peak.
Look carefully at the pedigree. Is the trait that is shaded dominant or recessive?
dominant
recessive
What do half colored symbols represent?
The individual is a carrier (hybrid).
The individual expresses the trait.
The individual has both recessive alleles.
The individual has both dominant alleles.
How many people are carriers of the trait in this pedigree?
2
3
5
6
All plants reproduce through asexual reproduction.
True
False
Sickle-cell disease is characterized by
abnormally thick mucus in the lungs and intestines.
abnormal blood clotting.
an extra copy of chromosome 21.
abnormally shaped red blood cells.
Gregor Mendel’s work was the foundation for understanding which of the following?
sex cells have half the number of chromosomes as body cells
protein synthesis occurs in the cytoplasm
offspring have traits similar to those of their parents
the results of one genetic cross do not affect the outcome of a second cross
Which of the following is a pattern that we observed in our plant experiment?
Offspring always inherit identical traits.
Offspring can show a variation of a trait that neither parent shows.
when parents have different variations of a trait, the recessive allele is more likely to be passed on.
Offspring only get instructions for a trait from one parent.
