Name_____________________________________ Core
1
2
3 4
Genetics Exam Study Guide
Instructions: Look through your notes, activities, quizzes, etc. to help you answer questions for
this study guide. Filling in the answers will help you recall information and studying the
answers tonight will help you also.
Use the pedigree to answer the
following questions.
What does dominant mean?
What does recessive mean?
What is an allele?
What is a Punnett Square?
Who is considered to be the “father of modern genetics?
Which of the following genotypes are Homozygous (HO) and Heterozygous (He)
Hh GG TT Nn kk Ff dd aa Qq RR Ee yy Jj BB
If 2 heterozygous parents have a child, what are the possible genotype outcomes?
GG: _____
Gg: _____
gg: ______
Give 3 examples of Homozygous Dominant Genotypes.
Give 3 examples of Heterozygous Dominant Genotypes.
Give 3 examples of Homozygous Recessive Genotypes.
What is a phenotype?
What is the cell cycle?
Label the following stages of Mitosis and place them in order from 1 (beginning) to 5 (end).
What is cytokinesis?
What types of things happen to a cell during interphase?
What happens to the nucleus at the end of prophase?
Where do the centromeres line up during metaphase?
What happens during anaphase?
At the end of telophase and cytokinesis there are ____ identical cells.
What are 3 examples of organisms that reproduce asexually?
John married Suzy and they are ready to start a family. John has brown hair (heterozygous) and
Suzy has blonde hair (recessive). Complete the Punnett Square and then answer following
questions.
List the possible phenotypes AND genotypes for the child.
What are the chances of a child with brown hair? ____ out of ____ or ____ %
What are the chances of a child with blonde hair? _____ out of _____ or ______ %
Where do you genes come from?
What is the acronym for Deoxyribonucleic Acid?
What are the names of the 4 hydrogenous bases that make up DNA?
1.
2.
3.
4.
Humans have _____ pairs of chromosomes, which is a total of ______.
In sexual reproduction, the mother and father each donate _______ of the genetic information
needed to make a baby.
What is the basic shape of DNA? _________________________ or _________________
What is the actual structure of DNA called?
According to Chargraff’s Rule, which of the nitrogenous bases ALWAYS attach?
1. _____________________ and ______________________
2. _____________________ and _______________________
How many parents are required for sexual reproduction?
Which type of reproduction, asexual or sexual, creates an identical offspring?
Gametes are sex cells which can be ____________ or ______________
What do we call the union of an egg and sperm?
Why is genetic variation important to survival? (you may have to apply some knowledge here)
How many cell divisions occur during meiosis? ______
How many phases are in meiosis? ______
List the phases below:
Which parent is responsible for determining the gender of the child?
What kinds of things can occur if an error occurs during meiosis? (you may have to apply some
knowledge here)