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Ch. 15 Evolution
PART 1 (All the stuff I don't believe but I have to study)
| Question | Answer |
|---|---|
| What have different shapes because their number and sequence of amino acids varies? | proteins |
| During Darwin's time, how old did people think the earth was? | a few thousand |
| According to Darwin's theory of natural selection, organisms best suited to their environment survive and what? | reproduce |
| What is another name for selective breeding? | Artificial Selection |
| Organisms of the same species who natural what? | variation |
| What was the name of Darwin's book? | On the Origin of species |
| What are the reactants o respiration? | sugar and oxygen |
| What percentage of human sperm cells carry the X chromosome? | 50% |
| Which organelle is found in plans but not animal cells? | chloroplasts |
| Name the three parts of a DNA nucleotide. | Nitrogen bases, phosphate groups, and deoxyribose sugar |
| Which of Mendel's laws is proven by a dihybrid cross/ | independent assortment |
| What is the ability of an organism to survive and reproduce known as? | fitness |
| Which organelle turns food into compounds used for growth, development, and reproduction? | mitochondrion |
| what is the purpose of gel electrophoresis? | to separate DNA |
| Given the following genotype what combination can be found in the gametes: BBRr? | BR, Br |
| How many variables are tested in controlled experiments? | one |
| What is produced from meiosis? | 4 different haploid gametes |
| Which part of Darwin's theory was supported by the similarities of physical characteristics of the finches? | Descent with Modification |
| Which base differs in RNA compared to DNA? | uracil |
| If I increase the amount of light, the plant wil lgrow faster. This is an example of what? | hypothesis |
| Which part of the cell regulates which materials enter and leave? | cell membrane |
| What is a physical or behavioral characteristic that better enables and organism to survive called? | adaptation |
| Who is the main evolution scientist? | Darwin |
| According to the evolution scientist, species change through the process of what? | natural selection |
| What do enzymes do to chemical reactions? | speed up |
| what is the ultimate source of genetic variation | mutations |
| The same kinds of cells that grow in similar patterns in different but related organisms are called what? | homologous structures |
| Why does polypploidy produce a new species? | the number of chromosomes differ. |
| From scientific experients we may revise or replace these when proven incorrect. What are we referring to? | theory |
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3j0mk1
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