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7 th Grade Science Genetics Review A:B: Dominant traits Heredity C:D: Trait acquisitionNone of these #1 The passing of traits from one generation to.

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Presentation on theme: "7 th Grade Science Genetics Review A:B: Dominant traits Heredity C:D: Trait acquisitionNone of these #1 The passing of traits from one generation to."— Presentation transcript:

1

2 7 th Grade Science Genetics Review

3 A:B: Dominant traits Heredity C:D: Trait acquisitionNone of these #1 The passing of traits from one generation to the next.

4 B. Heredity

5 A:B: Planting a potato cutting to grow into a new potato Bees pollinating from the flower of one plant to the flower of another C:D: A flower self-pollinatingNone of these #2 Which would result in the most diverse offspring?

6 B. Bees pollinating from the flower of one plant to the flower of another

7 A:B: Earned trait Acquired trait C:D: Inherited traitLearned trait #3 Mom and dad both have brown eyes. They have two children who also have brown eyes. This would be an example of a/an _______ _______

8 C. Inherited trait

9 A:B: dominant \ recessiveinternal \ external C:D: recessive \ dominantexternal \ internal #4 A brown haired and a blond haired parent have two children, both with brown hair. The hidden blond hair is said to be _________ The visible brown hair is said to be __________.

10 C. recessive/dominant

11 A:B: All reproduced asexually from a common parent All were reproduced sexually from a single pair of parents #5 When looking at DNA of three unknown organisms, you find that they all have the same sequence of DNA. Which statement below is the most logical explanation? C:D: BothNeither

12 A. All reproduced asexually from a common parent

13 A:B: GlucoseNBA C:D: DNARNA #6 Of what chemicals are chromosomes made?

14 C. DNA

15 A:B: Asexual reproductionSexual reproduction C:D: BothNeither #7 Reproduction where offspring come from a single parent, and inherit the genes of that parent only.

16 A. Asexual reproduction

17 A:B: Asexual reproductionSexual reproduction #8 Reproduction where a new organism is created when cells from two organisms combine. C:D: BothNeither

18 B. Sexual reproduction

19 A:B: Asexual reproductionSexual reproduction #9 What type of reproduction will give you the most diverse offspring (many different types of offspring)? C:D: BothNeither

20 B. Sexual reproduction

21 A:B: Asexual reproductionSexual reproduction C:D: BothNeither #10 *A Starfish re-growing an arm when cutoff. *Placing a piece of potato in a pot of soil. These are examples of ________ _________.

22 A. Asexual reproduction

23 A:B: Sexual reproduction C:D: BothNeither Asexual reproduction #11 *A littler of kittens *A bee transferring pollen from one plant to another. These are examples of ______ _________.

24 B. Sexual reproduction

25 A:B: Brown hair Attached ear lobe C:D: Widows Peak Rolling Tongue #12 Traits# of student exhibit the trait Brown hair30 Attached ear lobe9 Widows Peak14 Tongue Rolling22 Which of the traits in this chart is most likely a dominant trait?

26 A. Brown Hair

27 A:B: 75% Yellow 25% Green C:D: 25% Yellow 75% Green 100% Yellow 0% Green Y – Yellow y - Green Yy y y Yy yy #13 In a pea plant, the color yellow is dominant and green is recessive for flowers. If a heterozygous yellow pea plant and a homozygous green pea plant are crossed, what color seeds will result? 50% Yellow 50% Green

28 B. 50% Yellow 50% Green

29 A:B: 75% Free 25% Attached C:D: 25% Free 75% Attached 100% Free 0% Attached F – Free f - Attached Ff F f FF Ff ff #14 In people, free earlobes are dominant and attached earlobes are recessive. Both mother and father are hybrid for free earlobes. What are the offspring? 50% Free 50% Attached

30 A. 75% Free 25% Attached

31 A:B: Because of interbreeding within the same population of Devils with identical genes. Because of breeding with Devils of other populations with different genes. C:D: Neither Both #15 Scientists have discovered that Tasmanian Devils are descended from the same family. As a result, all of the Devils in the population have almost identical sets of genes. Although they reproduce sexually, this population is similar to a population that reproduces asexually. Why is this sexually reproducing population of Tasmanian devils similar to a population of organisms that reproduce asexually?

32 A. Because of interbreeding within the same population of Devils with identical genes.

33 A:B: C:D: Both Neither #16 Scientists have discovered that Tasmanian Devils are descended from the same family. As a result, all of the Devils in the population have almost identical sets of genes. Although they reproduce sexually, this population is similar to a population that reproduces asexually. If a disease strikes the Tasmanian Devil Population, what is most likely to happen to their population? It would all die because the disease would be spread due to interbreeding of the population. It would continue to survive and reproduce due to interbreeding of the population.

34 B. It would all die because the disease would be spread due to interbreeding of the population.

35 Great Job!!!! Great Job!!!! Thank you for playing! Thank you for playing!


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