20843717
Description
Flashcards by Lauren Curnutte, updated more than 1 year ago
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Created by Lauren Curnutte
over 4 years ago
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| Question | Answer |
| Biology - 4th 6wks | TEST TOMORROW |
| 1. if an ear of corn contains only white corn, what must it's genotype be? | Homozygous - recessive for white color. |
| 2. a bat wing are examples of what types of structures? | Homologous structures. |
| 3. the fact that both these mammals incubate their immature offspring in a pouch provides evidence that they- | are descended from a common ancestor. |
| 4. what percent of offspring from two hetero (Rr) parents are most likely to have the tongue-rolling trait? | 75%. |
| 5. what is the genotype(s) of bees with long wings? | dominant: 50% - short wings. heterozygous for wing size. |
| 6. the trait for white fur is most likely caused by-- | recessive alleles in both parents. |
| 7. what percentage of the offspring from BbFf x bbff cross would be expected to be heterozygous for both traits? | 25%. |
| 8. what should be compared to best determine how closely species are related to each other? | sequence of amino acids. |
| 9. what conclusion is best supported by the presence of teeth in bird embryos? | a common ancestor. |
| 10. what color hair will the offspring have? | same hair color - W. |
| 11. what is the definition of a genetic trait? | determined character. green eye color in a cat. |
| 12. according to the above information, how is the genotype Ttrr described? | tall and wrinkled , hetero - tall , homo - wrinkled. |
| 13. a human with two X chromosomes is defined as a- | female. |
| 14. if the genes also help their offspring survive and reproduce, then what will most likely increase? | genes in the population. |
| 15. in terms of natural selection, describe the term "fitness". | being able to survive. |
| 16. the adaptation that allows trees to grow taller would be an example of natural selection if it helps them-- | survive. |
| 17. what conclusion can be drawn from the following statements regarding adaption of organisms? | leads to change in species. |
| 18. according to the above definition of species, why are tigers and lions are still not considered the same species? | DO NOT interbreed. |
| 19. what will most likely occur in the rabbit population due to the introduction of the predator? | faster rabbits will survive and reproduce. |
| 20. what would best explain the decrease in the effectiveness of the pesticide? | inherited by their offspring. |
| 21. most closely related genetically to which of the following organisms? | phylum or species. |
| 22. list the classification groups from least specific to most specific. | REMEMBER: domain , kingdom , phylum , class , order , family , genus , species. |
| 23. the most specific scientific name of an organism is based on its-- | genus and species. |
| 24. based on this pedigree, what are the most likely genotypes of individuals 1-1 and 1-2? | c. aa. |
| 25. which is more closely related to merocheta? stemmiulida or penicillata? | stemmiulida. |
| 26. based on the geographic features, which two species are likely to have the most recent common ancestor? | 3 and 4. |
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