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Genetics Review
Genetics
1. The father of heredity observed pea plants to study patterns of heredity. ______________________
2. What is genetics? ____________________________________________________
Sexual vs. Asexual3.
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Offspring in asexual reproduction is… (circle) genetically identical or genetically different
Offspring in sexual reproduction is… (circle) genetically identical or genetically different
How many parents are associated with asexual reproduction? ___________
How many parents are associated with sexual reproduction? ___________
Is an amoeba dividing through mitosis is an example of which reproduction? _______________
A flower from two different plants are mated to produce a seed is an example of which reproduction?
______________________
9. An offspring of asexual reproduction is identical except in the case of… (circle one)
a. Clone b. genetic mutation
c. fertilization d. multicellular organisms
10. In Sexual reproduction, the offspring receives half of its genetic material from each __________
Mitosis vs. Meiosis
11. Which type of cell division are the chromosomes reduced by half as sex cells are formed? __________________
12. How many chromosomes are in sex cells (in humans)? _______________
13. What kinds of cells are produced in mitosis? __________ How many daughter cells are produced? _________
Are the daughter cells identical to each other or genetically different? _____________________
14. How many daughter cells are produced in meiosis? ____________ Are the daughter cells identical to each or
genetically different? ___________________
Traits
15. The environment can affect our traits. If you have an unhealthy diet and gain lots of weight would this be an
acquired or inherited trait?
Acquired
or
Inherited
16. Your eye color is an example of an ________________ trait that is determined by more than one gene.
17. PTC tasting is the only _______________ trait in humans that is determined by one gene.
18. The number of petals that grow in a plant’s flower is… Acquired
or
Inherited
19. The wing shape of a wild bird is…
Acquired
or
Inherited
20. The ability of some gorillas to use sign language is…
Acquired
or
Inherited
21. A cheetah’s ability to run faster than any other land animal is… Acquired or Inherited
22. Inherited traits are caused by… _____________________________________________________
23. Where is your DNA located? _________________ of a cell
*Using your answer to number 23 and the other two underlined words in the question, write the order from
largest to smallest.
_______________ -------- __________________------- ___________________
24. Give a few examples of animals that have DNA. ____________ ______________ ____________
Punnett Squares
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What is the genotype for a carrier? _________________
Complete a Punnett square where both parents are carriers
This means that their offspring has a ______% chance of inheriting the trait.
What is the ratio for the dominant trait? ______________
What are the two dominant genotypes (vocab & letters)?
________________________ _______
________________________ _______
What are the two genotypes that are homozygous (vocab & letters)?
________________________ _______
________________________ _______
What is the only recessive genotype (vocab & letters)?
_______________________ _______
Does the heterozygous take the dominant or recessive trait? (circle)
dominant or recessive
What is the genotype for a male? _________
What is the genotype for a female? _________
Based on 33 and 34, who ultimately determines the sex of an offspring? Male or Female
Pattern of Inheritance
36. In an AB blood type, the phenotype has both A blood and B blood expressed. Is this blood type an example of
incomplete dominance or co-dominance?(circle) Incomplete or Co-dominance
37. A red flower is bred with a white flower. The resulting offspring were all red flowers. This represents… (circle)
Simple dominant and recessive traits or Incomplete dominance or Co-dominance
Pedigree
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What shape is a female? ___________
What shape is a male? ____________
How do you know if someone has the genetic disease (affected)? _________________
Be able to write in the genotypes and tell if the genetic disease is caused by a dominant or recessive trait.