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Who was Gregor Mendel? What did he study?
A priest at a Central Monastery who studied pea plants. He is considered the father of genetics.
What are the differences between purebred and a hybrid?
A purebred has the same alleles dominant and recessive/ traits (RR or rr), whilst the hybrid has different alleles/traits (Rr).
What is a Punnett Square?
A chart that shows all the possible combinations of alleles that can result from a genetic cross.
What is the difference between genotype and phenotype?
The phenotype is an organism's physical appearance, and the genotype is the genetic makeup.
What is the result of meiosis?
The result is the resulting sex cells only have half as many chromosomes. This is how a unique being is created.
How can two organisms have the same phenotype but different genotypes?
You can have a situation where you have dominant alleles. You can look alike like twins, but not be the same. A person can be tall (dominant) and have the genotypes TT or Tt.
What is the difference between haploid and diploid cells?
2 Haploids make diploids; A haploid has one set of chromosomes and a diploid has two complete sets of chromosomes.
What does a mutation cause a cell to do?
It causes the cell to produce an incorrect protein which can change the organisms phenotype.
What is codominance?
When the alleles are neither dominant or recessive. As a result, both alleles are expressed in the offspring.
How is codominance related to blood type?
Blood type AB is codominant. A black chicken with white wings is codominant.
An example of when mutations are good and bad
Mutations can be harmful if it reduces the organisms chances for survival. Antibiotics and bacteria are examples of good mutations.
Why are only females carriers for colorblindness
Females have 2 X chromosomes. Males either have it or they don't
Does the environment affect a person's characteristics?
Yes, things such as diet and weather can affect a person.
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