my bio exam flashhcardss
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- while DNA contains the base thymine, RNA contains________ instead
- uracil
- ________ is protein synthesis. ___________ involves all three types of RNA
- translation
- ________ is the process by wich RNA molecules are produced from DNA
- transcription
- the ___________ describes the sequence of nucleotides used to produce amino acids.
- genetic code
- There are 64 kinds of codon but only 20 amino acids. Because of this an amino acid can be specifies by more than one___________
- codon
- _______ is the continued breeding of closely related individuals. it can lead to many genetic defects.
- Inbreeding
- ______ is used to cut DNA into fragments.
- Restriction Enzymes
- Understanding the sequence of an organisms DNA allows researchers to study ___________
- specific genes
- During _____________,a cell takes the DNA from an outside source.
- Transformation
- __________ organisms contain genes from other species. __________ bacteria can produce human proteins in large amounts.
- Transgenic
- transgenic bacteria can be used to produce ___________.
- insulin
- ____________ are used to cut out the insulin gene from human DNA.
- Restriction enzymes
- _________________was the first clone made.The DNA of a body cell from one sheep was inserted into the egg of a different sheep.
- dolly the sheep
- One adaptation that Darwin noticed on different islands was the different shapes of ________ on finches
- beaks
- the adaptations that Darwin observed in tortoises caused Darwin to wonder if they had once been members if the ____________.
- same species.
- _____&_________ work suggests that the Earth is many millions of years old. This suggested that the earth was old enough for evolution to have occured.
- Hutton's and lyells
- _________ suggested that as the human population grew, food would become scarce. Darwin realized that concept could be applied to any population of organisms.
- Malthus
- Darwin hesitated to publish his findings because they challenge the _________________.
- fundamental beliefs of the day
- Darwins observation that different species have similar characteristics __________________ of descending from a common ancestor.
- supports the concept
- Darwins concept of evolution was _____________ a knowledge of DNA.
- not influenced.
- while evolution was not mainstream during Darwins time people understood that __________ were preserved remains of ancient organisms.
- fossils
- Darwins theory of evolution does not explain _______________.
- inheritance of traits
- structures that have different mature forms but develop from the same embryonic tissue are called _____________.
- homologous structures
- the fact that more ____________ are produced than survive is a principle Darwins theory.
- offspring
- _______ include eggs, footprints, and body parts.
- fossils
- How we scientificly name something
- Binomial nomentclature