match # ->description with the term(letters).

1. process of manufacturing proteins
2. carries coded instructions for protein synthesis
3. makes up the ribosome with other proteins
4. section of 3 bases in tRNA that code for an amino acid
5. sequence of 3 bases in tRNA that complement an amino acid
6. bring amino acids to the ribosome in the correcr order to build new proteins
7. transfer of info from DNA to RNA
8. sequence of genes that are not part of a code for a protein
9. short sequence of DNA that codes for a protein

a.messanger RNA
b.transcription
c.codon
d.ribosomal RNA
e. transfer RNA
f. intron
g. exon
h. protein synthesis
i. anticodon

A scientist is using an ampicillin-sensiitive strain of bacteria that cannot use lactose because it has a nonfunctional gene in the lac operon. She has to plasmids. One contains a functional copy of the affected gene of the lac operon, and the other contains the gene for ampicillin resistance. Using restriction enzymes and DNA ligase, she forms a recombinant plasmid containing both genes. She then adds a high concentration of the plasmid to a tube off the bacteria in a medium for bacterial growth that contains glucose as thee only energy source. This tube (+) and a control tube (-) with similar bacteria but no plasmid are both incubated under the appropriate conditions for growth and plasmid uptake. The scientist then spreads a sample of each bacterial culture (+ and – ) on each of the three types of plates indicated below.

In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the result should be..

A) the production of endospores among the bacterium’s progeny.
B) the rapid spread of tetracycline resistance to other bacteria in that habitat.
C) the temporary possession by this bacterium of a completely diploid genome.
D) a transformed bacterium
E) the subsequent loss of tetracycline resistance from this bacterium.

An example of an inducible gene________
An example of a constitutive gene________
The lactose operon is switched off due to the presence of what_____
The inducer for the lactose operon is ______________
What structure is commonly used to transfer a human gene sequence into a bacterial cell?_______________
Recombinant DNA technology has produced many useful products. Select one from the list above. _______________________

choices to these question are: genes encoding the krebs cycle, plasmid, lactose, human anticlotting factor, lactose operon, repressor protein

i looked online and they give all of these confusing answers!!! i found this, but it doesnt make sense
•Attachment of virus to host cell
•Infection of DNA/RNA into the host cell
•Virus turns off the host cell’s genes
•Host cell manufactures the proteins and DNA/RNA
•Assembly of the viruses from proteins and DNA/RNA

B. are sites for inserting genes for amplification. C. may be transfered between different species of bacteria D. may confer the ability to donate genetic material when bacteria conjugate E. all of these

i dont get plasmids and why we use them. is it because they can move into bacterial cells? so does an organism with recombinant dna have genes they would normally have along with genes from the foreign dna? im so confused

a. a vehicle for the insertion of foreign genes into bacteria
b. recognition sites on recombinant DNA strands
c. surfaces for protein synthesis in eukaryotic recombinants
d. surfaces for respiratory processes in bacteria
e. proviruses incorporated into the host DNA

18. An organ is composed of several tissues that work together for a specific function. Which of the following is an example of an organ?
A. A leaf producing food
B. A tendon connecting two bones
C. A rootlet absorbing water
D. A heart muscle fiber contracting

19. Cells from a zebra and a horse both have
A. impermeable cell membranes.
B. large central vacuoles.
C. exactly the same DNA.
D. membrane bound organelles.

20. In Figure 28.1, what does the starburst represent?

A. Glucose
B. Chemical energy
C. The sun
D. A phosphate group

21. If your body cells do not have enough oxygen because you are exercising hard, which process takes over for cellular respiration?
A. Calvin cycle
B. Chemosynthesis
C. Fermentation
D. Glycolysis

22. Almost every cell in an organism has a full set of the same genes, yet every cell does not function in the same way. Why?
A. In the process of cell division, the genes undergo many different mutations.
B. The few cells that do not have a full set of DNA are the most influential.
C. Each cell uses only the specific genes it needs to carry out its function.
D. The same series of nucleotide pairs code for different proteins each time they occur.

23. Cells containing chlorophyll working together to absorb sunlight form an example of a(n)
A. chromosome.
B. tissue.
C. organelle.
D. organ.

1. which statement is not a characteristic of plasmids
a. extra-chromosomal
b. replicate independently
c. easily moved out of, and into, bacterial cells
d. used as DNA delivery units in biotechnology
e. the same size as bacterial chromosomes

2. which of the following is the most commonly used cloning vector in genetic engineering

3. Bacterial transformation is a bacterial ability to
a. cut foreign DNA
b. produce proteis from another organism’s genes
c. take up DNA from its surroundings.
d. connect DNA fragments once they are cut with restriction enzymes
e. produce restriction enzymes

4. what is a cloning vector?
a. a cell that is producing protein from a reombinant plasmid
b. a DNA vehicle that carries recombinant DNA into cells
c. an enzyme used to cut or combine DNA
d. a protein like HIGH that is produced by biotech.
e. an animal that is an exact copy of another animal