Term
| The mRNA has a three-nucleotide sequence called a(n), while the nolecule transporting the amino acid has a complementary sequence called a(n) |
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Definition
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Term
| The coding portions of most eukaryotic genes are embedded as introns with long seuqnces of non-coding exons. |
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Definition
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Term
| A(n)__________ is a piece of DNA with a group of genes are transcribed together as a unit. |
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Definition
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Term
| The primary RNA transcript is: |
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Definition
| mRNA before the introns have been removed. |
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Term
| The use of DNA information to direct the production of particular proteins is called: |
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Definition
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Term
| During translation, the mRNA molecule |
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Definition
| moves between the two subunits of the ribosome |
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Term
| How many different codons are possible witht he four different mucleotides? |
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Definition
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Term
| In eukaryotes, transcription takes place in teh ______ and translation takes place in teh ______. |
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Definition
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Term
| All of the following occur in both prokaryotes and eukaryotes except: |
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Definition
| there is an alternative splicing of genes |
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Term
| Due to ____ the 25,000 genes of the human genome seem to encode as many as 120,000 different expressed mRNAs. |
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Definition
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Term
| The direct result of transcription is |
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Definition
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Term
| Genes can be turned on by the binding of a repressor. |
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Definition
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Term
| In the process of translation, the amino acids are attached to |
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Definition
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Term
| The codon GCU specifies the amino acid alanine. |
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Definition
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Term
| Which of the following is correct about the genetic code? |
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Definition
| all living things use the same genetic code. |
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Term
| The molecule that carries each amino acid to its correct6 positino along mRNA in the cytoplasm is: |
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Definition
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Term
| The ________ is composed of 2 subunits, one nested into the other like a fist in the palm of your hand. |
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Definition
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Term
| The nucleotide seuqences on DNA that actually have information encoding a sequence of amin o acids are: |
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Definition
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Term
| Which of the following cannot be a product of transcription? |
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Definition
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Term
| If an mRNA codon reads UAC its complementary anticodon will be: |
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Definition
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Term
| Of what benefit is the metallothionin gene that is inserted into golden rice genome? |
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Definition
| supply extra sulfur to increase iron uptake |
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Term
| How many genes constitube the human genome? |
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Definition
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Term
| In therapeutic cloning, why are the embryonic cells used to treat an individual not rejected by that individual? |
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Definition
| Because the embryonic cells are cloned from the same individual they are injected into. |
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Term
| A clear distinction between therapeutic cloning and reproductive clothing that; |
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Definition
| therapeutic clonthing involved the eventual destruction of the embryo, whereas reproductive cloning does not |
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Term
| A friend asks you a question after you biology class. "What's genetic engineering?" Your answer is: |
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Definition
| "Genetic engineering is moving genes from one organism to another." |
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Term
| Groups of related but distinctly different genes that occur together in clusters are called: |
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Definition
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Term
| Inteferons are used to disrupt the reproduction of viruses. |
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Definition
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Term
| All of the genes and other DNA of an organism constitute its: |
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Definition
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Term
| DNA molecules can be cut into sections by using |
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Definition
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Term
| Comparing the entire DNA content of different organisms is called: |
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Definition
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Term
| In genetic engineering, ligase is used as |
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Definition
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Term
| Genomic imprinting works by: |
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Definition
| blocking the cell's ability to read certain genes |
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Term
| Genes for typical single-character Mendelian traits are called |
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Definition
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Term
| Adult stem cells offer an alternative to embryonic stem cells, however they: |
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Definition
| are difficult to identify |
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Term
| Sticky ends are the result of |
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Definition
| cutting by restriction enzymes "off center" in a specific nucleotide sequence. |
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Term
| Each adult stem cell is capable by itselfof debeloptin into a healthy individual and is therefore totipotent. |
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Definition
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Term
| Genetic engineering can make plants toxic to insect pests that feed on the plant, but leave the plant harmless to humans. |
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Definition
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Term
| One disease in which gene therapy was used, but not successfully yet is: |
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Definition
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Term
| An adult stem cell differs from an embryonic stem cell in that it is not: |
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Definition
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Term
| If only about 1% of the human genome is devoted to protein-encoded genes, what is the majority of the rest? |
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Definition
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Term
| The flippers of penguins and dolphins are |
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Definition
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Term
| all of the following are examples of vestigial structures except: |
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Definition
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Term
| Profound changes, such as major epsidoes of extinction, are an example of |
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Definition
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Term
| A population of frogs developing a slight difference in their mating calls is an example of: |
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Definition
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Term
| Two populations of flowers are separated by a mountain range and would not be capable of interbreeding. This is an example of: |
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Definition
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Term
| If two species of plants bloom during different seasons in the same habitat, this is known as: |
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Definition
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Term
| Biochemical changes that occur in organisms through time can help us: |
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Definition
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Term
| Darwin better understood the mechanism for natural selection after he read a book by ______________ on the rate of growth of populations. |
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Definition
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Term
| Bees may pick up pollen of one species on a certain place on their bodies; if this area does not come into contact with the receptive structures of the flowers of another plant species, the pollen is not transferred. This is an example of: |
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Definition
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Term
| If two species of birds occur in the same area but occupy different habitats they do not mate. This is an example of: |
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Definition
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Term
| Much of the evolutionary history of vertebrates can be seen in the way in which their ________ develop. |
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Definition
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Term
| The fossil record indicates that whales evolved from: |
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Definition
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Term
| Choose the phrase that best represents macroevolutionary change. |
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Definition
| New forms of animals replacing older ones |
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Term
| Evolutionary change that results from parallel evolutionary adaptations to similar environments is called convergent evolution. |
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Definition
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Term
| Darwin's evidence that evolution occurs included: |
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Definition
| All of these were Darwin's evidence for evolution. |
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Term
| A structure remaining in an animal but with no use at all is called: |
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Definition
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Term
| The flippers of penguins and dolphins are |
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Definition
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Term
| In human infants, there has long been evolution toward having the highest survival rate at a 6-7 pound birth weight. This is an example of: |
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Definition
| stabilizing or balancing selection |
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Term
| In small populations, gene frequencies can change drastically by chance alone. This phenomenon is called: |
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Definition
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Term
| The most direct evidence of macroevolution is found in the fossil record. |
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Definition
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Term
| Darwin's main tenet of natural selection was: |
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Definition
| Both B and C are correct. |
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Term
| The final stimulus that convinced Darwin to publish his findings came from _____________, who had come to the same conclusion as Darwin from his own travels. |
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Definition
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