Write Your Answers ONLY on the Answer Sheet Provided. Make Sure to Follow All Instructions
GENTICS TEST
Write your answers ONLY on the answer sheet provided. Make sure to follow all instructions and put your name on your answer sheet.
- An organism’s physical appearance is its
- genotype
- phenotype
- codominance
- heterozygous
- What is the chromosome theory of inheritance?
- chromosomes are carried from parents to offspring on hybrids
- genes are carried from parents to offspring on chromosomes
- Hybrid pairs of chromosomes combine to form offspring
- codominant genes combine to form new hybrids
- The different forms of a gene are called
- alleles
- factors
- masks
- traits
- Where does protein synthesis take place
- in the ribosomes in the nucleus of the cell
- on the ribosome in the cytoplasm of the cell
- in the chromosome in the nucleus of the cell
- on the chromosomes in the cytoplasm of the cell
- Cloning results in two organisms that are
- both adult mammals
- produced from cuttings
- genetically similar
- genetically identical
- In an attempt to produce a potato that tastes good and is also resistant to disease, plant breeders crossed a potato variety that tastes good with a variety that resists disease. This technique is an examples of
- genetic engineering
- inbreeding
- selective breeding (hybridization)
- cloning
- A carrier is a person who has
- one recessive and one dominant allele for a trait
- two recessive alleles for a trait
- two dominant alleles for a trait
- more than two alleles for a trait
- Factors that control traits are called
- genes
- purebreds
- recessives
- parents
- What does the notation TT to genecists
- homozygous dominant alleles
- heterozygous alleles
- homozygous recessive alleles
- one dominant and one recessive allele
- What does a punnett square
- all the dominant alleles in a genetic cross
- all the possible outcomes of a genetic cross
- only the recessive alleles in a genetic cross
- all of Mendel’s discoveries about genetic crosses
- An organism that has two identical alleles for a trait is
- codominant
- tall
- homozygous
- heterozygous
- a heterozygous organism has
- three different alleles for a trait
- two identical alleles for a trait
- only one allele for a trait
- two different alleles for a trait
- An organism’s genotype is its
- feather color
- physical appearance
- genetic makeup
- stem height
- A homozygous dominant male is crossed with a heterozygous female, what do their alleles look like?
- AA x aa
- AA x Aa
- AA x AA
- Aa x Ac
- Selective Breeding is
- when organisms genes are changed to get desirable traits
- when organisms are dissected for scientific learning
- when two organisms with desirable traits are bred for those traits
- when two organisms are removed from the gene pool
- The Catholic Monk that is considered the “father of modern genetics”
- Charles Darwin
- Gregor Mendel
- Albert Einstein
- Francis Cook
- An organisms physical appearance
- heterozygous
- genotype
- phenotype
- homozygous
- You cross a black homozygous dominant male rabbit with a heterozygous black rabbit what percentage of the offspring will be white?
- 0%
- 25%
- 50%
- 75%
- In selective breeding mating animals for desired traits sometimes results in
- healthy offspring
- unhealthy offspring
- short offspring
- tall offspring
- Two people marry and have children one of their children has Cystic Fibrosis. What do we know about the genotypes of the parents?
- they are both homozygous dominant and healthy
- they are both homozygous recessive and sick
- they are both heterozygous and carriers
- One is homozygous and the other is not
- You have red hair just like your mom’s sister Aunt Suzie because
- you inherited traits from Aunt Suzie
- you share traits passed down from similar ancestors
- Aunt Suzie is really your mom and no one told you
- You both got the traits by chance and are not really related
- Cooking, running, and playing instruments are examples of
- homozygous traits
- inherited traits
- acquired traits
- heterozygous traits
- What percentage of DNA do you share with your brothers/ sisters?
- 25%
- 100%
- 30%
- 50%
Use the chart above to answer the following questions
- In the chart above what are the genotypes and phenotypes of the offspring in the F1 generation?
- In the F2 generation what percentage of the offspring will have purple flowers?
- In which generation are the parents heterozygous? How do you know?
- Looking at both the F1 and F2 generations how many of the offspring will be White?
- Looking at both the F1 and F2 generations how many of the offspring will be heterozygous and purple?
SpongeBob SquarePants recently met SpongeSusieRoundpants at a dance. SpongeBob is heterozygous for his square shape, but SpongeSusie is round. Create a Punnett square to show the possibilities that would result if SpongeBob and SpongeSusie had children. HINT: Read question #2!
29. Complete the Punnett square on your answer sheet to answer the following questions about Sponge Bob and Sponge Suzie.
30.List the possible genotypes and phenotypes for their children.
31.What are the chances of a child with a square shape? ____ out of ____ or ____%
32.What are the chances of a child with a round shape? ____ out of ____ or ____%
Use the pedigree chart to answer the following questions
The pedigree shows Cystic Fibrosis. Cystic fibrosis is a recessive trait, being healthy is the dominant trait.
33. How many of the offspring are not infected with Cystic Fibrosis?
34. How many of the female offspring are infected with Cystic Fibrosis?
35. Which parent was sick with the disease?
36. In order for the children to be infected what do we know about the mom’s genes?
Answer 1 of the 3 essay questions below on your answer sheet with 5-7 full sentences.
A.What is genetic modification? Explain the possible benefits (2) and the possible drawbacks (2).
B.What is selective breeding? Give examples of the benefits to humans that are a result of selective breeding.
C.Compare and contrast acquired traits and inherited traits. Give examples of both types and how you get them.