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Definition
| A normal woman has a colorblind son. Her most probable genotype is____ |
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A female cat had 9 kittens: 2 orange males, 2 black females, 3 black males, and 2 calico females.
What color was this female cat?
If the entire litter had the same father, what color is he? |
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Definition
A black lab mated with a yellow lab and produced 4 black and 4 brown puppies (E=melinin, e=none; B=black, b=brown)
What is the most probable genotype of the yellow lab?
most probably of black lab?
If the progeny instead were 4 yellow, 2 black, and 2 brown, what would be the most probable genotype of the black lab? |
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| Two normal flies were mated. Progeny were 1/2 normal females, 1/4 normal males, 1/4 white eyed males. The gene for eye color is most likely ____? |
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Definition
| When one gene has many different effects on phenotype, the gene is _____ |
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Term
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Definition
| When one gene masks the expression of another gene, the gene is _______. |
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Definition
| Independent assortment occurs when genes are on _______ |
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Term
| 56 tall blue, 6 tall white, 53 short white, 9 short blue |
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Definition
which of the following results of a dihybrid test cross indicates that the genes are linked?
56 tall blue, 60 tall white, 53 short white, 59 short blue
or
56 tall blue, 6 tall white, 53 short white, 9 short blue |
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Term
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Definition
| polygenes are responsible for human ______ |
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Term
| polygenes and environmental factors |
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Definition
| human skin color is affected by _________ |
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Definition
| It is impossible for teo phenotypically blue-edyed parents to have a brown eyed child. |
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Definition
| Which experiments showed that DNA replication was semiconservative? |
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Definition
| Which experiments showed that heat killing bacteria did not destpry the genetic information? |
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Term
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Definition
| If the percentage of guanine pn a DNA molecule is 20%, what is the percentage of Thymine? |
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Term
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Definition
| Directionalirt of DNA is determined by the direction of the carbons of the |
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Term
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Definition
| the enzyme needed to unwind DNA in both eukaryotes and prokaryotes is ____ |
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Term
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Definition
| the enzyme needed to prevent kinks when unwinding circular DNA is _____ |
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Term
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Definition
| The enzyme _______ forms the primer strand needed in initiation of DNA replication |
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Term
| in both DNA adRNA formation synthesis is %' to 3' on a 3' to 5' template |
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Definition
| Which of the following best describes nucleic acid formation? |
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Term
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Definition
| Okazaki fragments are produced while replicating the ____ strand. |
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Definition
| During embryonic stages, _____ are added to the ends of DNA strands. They increase the number of times a particaulr strand can be replicated., |
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Definition
| If the sequence on the template of DNA is 5'AGT3', what is the sequence of the newly synthesized strand? |
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Definition
| If the sequence on the sense strand of DNA is 3'CTA5', what is te sequence of mRNA produced? |
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Term
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Definition
| if the strand is 3'CTA5', what would be the anticodon sequence of tRNA produced? |
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Term
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Definition
| Some tRNA molecules can bind to more than one kind of amino acid |
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Term
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Definition
| some amino acids can bind to more than one kind of tRNA |
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Term
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Definition
| How many bases are needed to code for one amino acid in a protein? |
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Term
| prokaryotes and eukaryotes |
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Definition
| tRNA in _____ must be modified before it can be used |
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Definition
| mRNA in ____ must be modified before is can be used |
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Term
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Definition
| a single mRNA molecule in _____ can code for more than one polypeptide |
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Definition
| Introns are found in _______ |
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Definition
| The enzyme that joins amino acids together in protein sysnthesis is a ribosomal _____ |
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Term
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Definition
| In tRNA, there are areas where the RNA is double stranded |
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Term
| mRNA joins the small subunit, initiator tRNA joins, large ribosomal subunit joins |
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Definition
| What is the correct sequence of protein synthesis initiation? |
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Term
| the peptide chain is added to the new amino acid |
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Definition
| what best describes protein elongation? |
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Term
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Definition
Which of the following is a terminator code? (all are 5-->3)
AUG, UGA, GUA, AGU |
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Term
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Definition
| during termination of protein synthesis a ____ associates with the terminator codon. |
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Term
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Definition
| retroviruses like the AIDS virus use the enzyme reverse transcriptase to make ____ using ____ as a template |
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Term
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Definition
| if a DNA sequence was changed for AACTG to AAACTG we could call it a ______ mutation |
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Term
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Definition
| if a DNA sequence was changed from AACTG to AGCTG we would call it a ______ mutation |
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Term
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Definition
| there are some DNA mutations that do not change the sequence of amino acids in the coded protein |
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Term
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Definition
| the ___ is the site on the chromosome to which RNA polymerase binds for transcription |
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Definition
| the _____ is the site on the chromosome to which a repressor protein binds |
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Definition
| in bacterial negative transcriptonal control of the genes coding for enzymes to make an amino acid, the amino acid would usually ______ the repressor protein |
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Definition
| in bacterial negative transcriptional control of the genes coding for enzymes to break down a sugar, the presence of the sugar would usually ____ the repressor protein |
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Definition
| operons are common features of ____ cells |
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Term
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Definition
| enhancers and upstream promotor elements modulate transcriptonal control in ____ cells |
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Term
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Definition
which of the following is /are a typical sequece recognized by restriction enzymes that leave sticky ends?
ATGGTA
or AAGCTT |
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Term
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Definition
| Restriction enzymes are typically isolated from _____ |
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Term
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Definition
| Restriciton enzymes are _____ |
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