HEREDITY CA REVIEW

1. HEREDITY CA REVIEW

2. What is an adaptation? • A change in DNA • An over production of offspring • A competition between two members of the same species • A modification in a species for survival • I need help.

3. Which of the following is true about the rate of evolution for most species? • Evolution can occur over a weekend • Evolution occurs in several months • Evolution occurs over one year • Evolution occurs over millions of years • I need help!

4. If trees grew taller over time, what physical characteristics of giraffes would allow them to survive? • Thick neck • Thin neck • Long neck • Short neck • I need help!

5. Which of the following is a result of adaptations over a long period of time? • Diversity within a species. • Competition within a species. • Extinction of a species. • I need help!

6. Darwin’s studies of finches on the Galapagos Islands suggest that the finches’ differences in beak structure were most directly due to…. • Acquired characteristics in the parent finches • Mating behaviors of different finch species • Adaptations of the finches to different environments • I need help!

7. Which of the following is better adapted for a water environment? • Hawk • Duck • sparrow B A. C

8. Which of the following is a piece of evidence for evolution? a) Different body structures b) Similarities in early development c) Number of members of species d) Competition e) I need help!

9. When some members of a species become isolated • They become extinct • They cannot reproduce • They are more likely to form a new species • Their population increases

10. Diversity between individuals of a population or species is caused by: • Overproduction • Random mutations • Extinction • Gradualism

11. We are learning to:describe how asexual reproduction increases or decreases chances for survival.We are looking for :Increases survival: due to no variation, it allows for survival in a stable environment.Decreases survival: due to no variation, the organism is not able to adapt to a changing environment.

12. Paramecia usually reproduce asexually. Fish reproduce sexually. Suppose the environmental conditions in the lagoon change. What advantage will the fish populations have over the paramecium population? • Offspring are identical to the parents • Genetic variability decreases in the fish populations • Only a single individual is required to reproduce • Offspring are able to adapt to new conditions over fewer generations. • Help! I don’t understand.

13. Which of the following is NOT an example of asexual reproduction? • budding • regeneration • Fission • Fertilization • Help! I don’t understand.

14. Which of the following statements is true regarding asexual reproduction? • Requires a lot of energy • Allows for diversity • Does not allow for diversity • Requires two different organisms • Help! I don’t understand.

15. How has sexual reproduction enhanced a species’ chance for survival? • It produces offspring with unique traits • It always produces offspring that are identical • It does not allow for genetic variation • It produces offspring that cannot reproduce if two different species mate • Help! I don’t understand.

16. We are learning to: recognize that likenesses between parents and offspring are inherited while some are learned.We are looking for:example of traits that are inherited and traits that are learned.

17. From whom does a male offspring get its traits? • Mom • Dad • Both a and b • Neither a or b • Help! I don’t understand!

18. Which of the following is a learned trait? • Hair color • Eye color • Table manners • Height

19. Which of the following terms describe the physical appearance of the organisms caused by inherited traits? • Allele • Genotype • Homozygous • Phenotype • Help! I don’t understand!

20. Which term describes an inherited trait that is always expressed when present? • Dominant • Genotype • Phenotype • Recessive • Help! I need help

21. We are learning to: recognize the differences between inherited traits and learned traits. We are looking for: probability about inheritance using Punnett squares.

22. What is the phenotype of the F1 generation from the Punnett square below? (T = tall, t = short) • 100% Tall • 100% short • 50% tall, 50% short • 75% tall, 25% short T t T t

23. Which of the following statements describes the offspring in the Punnett Square below? • All offspring will be homozygous recessive. • Half of the offspring should have the recessive phenotype. • The offspring will all have the dominant trait. • The offspring are all heterozygous. t t T t

24. Two adults decide to have a baby. If one parent has brown eyes (BB), which is a dominant trait and the other parent has blue eyes (bb) which is a recessive trait. What is the probability that they will have a baby with blue eyes? • 100% • 75% • 50% • 25% • 0%

25. In rabbits, brown fur (B) is dominant over white fur (b). If two brown, heterozygous rabbits mate, what is the probability that their offspring will have white fur? • 100% • 75% • 50% • 25% • 0%

26. In humans, free ear lobes (E) is dominant over attached ear lobes (e). Which of the following describe the outcomes if a homozygous dominant man and a heterozygous female have a baby? • All of their children will have attached ear lobes • ½ of their children will have attached ear lobes • All of their children will have free ear lobes • ½ of their children will have free ear lobes.