Download Biology I Chapter 8 Study Guide

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Honors Biology I Chapter 11 Study Guide
1. Review the steps of meiosis. You should know what happens and what each
stage looks like.
2. What is crossing over and when does it occur?
3. Review all vocabulary.
4. Compare and contrast the processes of meiosis and mitosis.
5. If a cell has a diploid number of 18, after mitosis each new cell would
contain ____ chromosomes. After meiosis, each resulting cell would
contain ____ chromosomes.
6. Contrast sex chromosomes and autosomes.
7. What makes chromosomes homologous? Why do we inherit chromosomes
in a pair?
8. Describe the three processes that contribute to genetic variation.
9. Who was Gregor Mendel and what did he do?
10.Why did Mendel choose to study pea plants?
11.Describe Mendel’s principles?
12.How are genotype and phenotype related?
13.How many traits does a monohybrid cross test?
14.Review monohybrid punnett squares. You should be able to complete the
square, answer any questions, and write the phenotypic and genotypic ratios.
Practice with the problems below:
a. Cross a homozygous axial pea plant with a heterozygous axial pea
plant.
b. Cross a heterozygous purple flower pea plant with a pea plant that has
white flowers.
c. Cross two pea plants that are heterozygous for green pods.
i. If 100 seeds were planted from the above cross, how many
would be expected to have green pods?
d. Dihybrid practice problem:
i. Cross a short, heterozygous axial flower pea plant with a short,
terminal flower pea plant.
15.How are incomplete dominance and codominance different?
16.Hair color (either black or white) in guinea pigs is incompletely dominant.
If an offsprings genotype is heterozygous, what will their phenotype be? If
this trait were codominant, what would their phenotype be?