Which of the following is the best definition for recombinant DNA?
DNA that carries genes from different organisms.
When human gene is inserted into the yeast cell, the yeast cell produces the human protein encoded by that gene. This is evidence that the genetic code is universal among all life on earth. Which of these statements is an implicaation of the universality of the gentic code?
All life on earth is genetically related.
Which of these is a transgenic organism?
an organism carrying a gene that was acquired by artificial means
Which of the following best defines the term transgenic animal?
an animal containing a gene from a third "parent" maybe another species
When plasmids are used to produce a desired protein, the_
Desired gene is inserted into the plasmid and the plasmidis taken up by the bacterium
The process of making multiple copies of a gene by inseting it into a host genome and culturing the host is called_
A virus that has RNA as its genetic material can use_ to convert info stored in RNA to info stored in DNA.
An advantage of using reverse transcriptase tp prepare a gene for cloning is that_.
the resulting DNA strand will lack introns
A collection of cloned recombinant plasmids that includes fragments from the entire genome of a cell is called a_.
Of the following, which is the last step in the production of a recombinant DNA plasmid?
using DNA ligase to join DNA fragments
You are attempting to link an individual to a crime. The only evidence you have is a tiny drop of blood. How can you use this drop of blood to make the association?
you can use PCR to increase the amount of DNA available for restriction fragment analysis
At one point, you were just an undifferentiated, single cell. You are now made of many cells; some of these cell function as liver cells, some as muscle cells, some as red blood cells, while others play different roles. What name is given to the process that is reponsible for this?
What name is given to a unit of bacterial chromosomes that controls the expression of a specific set of genes?
In prokaryotes, the production of a single RNA transcript for a group of related genes is under the control of the_
What would you assume if you found RNA transcripts of lactose-utilizing genes within E coli?
the presence of lactose
While examining a human cell that functions normally, you determine that it has 45 funtional chromosomes and one chromosome that is almost completely inactive. You immediately decide that it is very likely that this cell_
came from a normal humane female
Male tortoiseshell cats
are likely to be exceedingly rare and very likely to be sterile since normal male cats are XY
Which of these plays a role in the regulation of transcription in both prokaryotic and eukaryotic cells?
attachment of RNA polymerase to the promoter
Eukaryotic DNA sequences called enhancers have a function similar to the_ of prokaryotic operons.
Which of these is a type of post-trancriptional regulation of gene expression?
alteration of proteins
How can a single RNA transcript be translated into different polypeptides?
There is more than one way to splice an RNA transcript.
In fucture, scientists hope to be able to compare whole genomes of individuals, a new field called_
Which of these statements can be logically inferred from the amount of DNA shared by chimpanzees and humans?
Humans and chimpanzeesshare a relatively recent common ancestor
To find the nucleotide sequence of human chromosomes had to be digested into small fragments and then
inserted into a vector and cloned
What technique was used by Celera Genomics to quickly produce a draft of the nucleotide sequence of the human genome?
whole-genome shotgun approach
Ethical dilemmas raised by DNA technology and knowledge of the human genome include_.
E) all of the above
What is the advantage of being able to clone the gene for human insulin?
Human insulin is less likely to provoke an allergic reaction than cow, pig, or horse insulin
If adenine makes up 20% of the bases in aDNA double helix, what percent of the bases are guanine?
If one strand of a DNA double helix has the sequence GTCCAT, what is the sequence of the other strand?
During replication,_ are the enzymes responsible for joining the nucleotides of a new DNA strand together.
The modern phrasing of Beadle and Tatums hypothesis about relationships between genes and their productsis one gene one_