Question | Answer |
What's the difference between a law and a theory |
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What are the parts of controlled experiment? | dep. indep variables, control
| The statement the worm is 2 centimeters long is an_____ | observation
| To be useful a hypothesis must be_________ | testable
| Term for keeping stable internal conditions | homeostasis
| Proteins are polymers formed from______ | amino acids
| Which of the following is not and organic molecule | sodium chloride | What do nucleotides consist of | a phosphate group, nitrogen base, sugar
| What happens when an enzyme is denatured? | it loses its shape
| Which organelle is found in both prokaryotic and eukaryotic cells? | ribosomes
| Moving molecules against the concentration gradient is known as_____ | active
| Why can bacteria recognize a human gene and then produce a human protein? | The basic components of DNA are the same in humans and bacteria.
| The sequence of DNA below is part of a gene. How many amino acids are coded for by this segment? ATCAGCGCTGGC | 4
| What is one way a mutation can occur? | one nucleotide is replaced by another, or deleted, or added
| What three amino acids are coded for by: ACA, GUC, GGA | threonine, valine, glycine
| Describe the central dogma of biology | energy is passed from DNA to RNA to proteins (ribosomes)
| Which type of reproduction leads to increased genetic variation on a population? | sexual reproduction
| Why is cancer linked to cell division? | because cancer is uncontrolled cell divsion
| When does crossing over occur and why is it essential for genetic variation? |
| Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how many chromosomes will be found in the leaf cells of Plant 2? | 56
| Plant cells that are specialized for cell division are most likely found in what part of the plant? | roots
| What is the main function of leaves? | photosynthesis
| What is the human embryo called after the eighth week of development? | fetus |