Science
Review Guide
6th Grade
Name: __________________________
Date: __________________________
Vocabulary
Asexual Reproduction
Binary Fission
Regenration
Budding
Gene
Sexual Reproduction
Heredity
Allele
Phenotype
Genotype
Dominant
Recessive
1)
List and describe the three types of asexual reproduction.
2)
Name three differences between asexual and sexual reproduction.
3)
Explain the difference between acquired and inherited traits.
4)
Explain the difference between genotype and phenotype.
5)
What is a Punnett square?
6)
What can a Punnett square show us about heredity?
Homozygous
Heterozygous
Ratio
Probability
7) In pea plants, the allele for smooth peas is dominant over the allele for wrinkled peas. Create a
Punnett square and calculate the probability that two smooth pea plants will have an offspring
with wrinkled peas if one parent has two wrinkled alleles and the other parent has one smooth
and one wrinkled allele.
8) Can a Punnett square tell you the specific outcome of a genetic cross? Why or why not?
9)
When is the only time that a recessive trait will be expressed in an offspring?
10) Is it possible for two parents with brown eyes to have a blue eyed child? If so, demonstrate
when this is possible.