!!HELP!! HELP!! HELP!! PLEASE!!! Ap bio questions

Can anyone help me answer these questions?
any help would be greaaatly appreciated!
Thank You!

Refer to the following lis of enzyme to answer the following questions. They may used once, more than once, or not at all.

A. Helicase
B. Nuclease
C. Ligase
D. DNA polymerase
E. Primase

1. catalyzes synthesis of a new strand of DNA

2. Enhances separation of DNA strands during replication.

3. covalently connects segments of DNA

4. Synthesizes short segments

5. A DNA ctting enzyme in the repair of damage of DNA.

38. What are the coding segments of a stretch of eukaryotic DNA called?
a. introns
b. exons
c. codons
d. replicons
e. transposons

39. where is the attachment site for RNA polymerase?
a. structural gene region
b. initiation region
c. promotor region
d. operator region
e. regulator region

44. Which of the following helps to stabilize mRNA by inhibiting its degradation?
a. TATA box
b. splicesomes
c. a modified guanosine triphosphate
d. snRNPs
e. poly(A) tail

46. What are ribosomes composed of?
a. 2 subunits, each consisting of rRNA only.
B. 2 subunits, each consisiting of several proteins only.
c. both rRNA and protein
d. mRNA, rRNA, and protein
e. mRNA, tRNA, rRNA, and protein

49. Where is eukaryotic ribosomal RNA transcribed?
a. the Golgi apparatus
b. ribosomes
c. nucleoli
d. X chromosomes
e. prokaryotic cells only

50. What is the most abundant type of RNA?
a. mRNA
b. tRNA
c. rRNA
d. pre-mRNA
e. hnRNA

use the following answers for the following questions. the answers may be used once, more than once, or not at all.

a. transduction
b. tranposition
c. translation
d. transformation
e. conjugation

82. external DNA is assimlated by a cell.

83. DNA from pneumonia-causing bacteria is mixed with harmless bacteria. the bacteria are injected nto mice. the mice develop pneumonia and die.

84. Baceria have proteins on the surface that recognize and take in DNA from closely relaed species.

85. DNA is tranferred form on bacterium to another by a virus.

87. A group of F+ bacteria is mixed with a group fo F- bacteria. after several days, all of the bacteria are F+.

88. A plasmid is exchanged between bacteria through a pilus.

89. Movement of a sequence of DNA to altenative locations in the DNA.

90. DNA is present that does not provide any konwn benfit to the cell, yet is replicated each time the genome replicates.

91. Antibiotic- resistant genes from differant plasmids are found integrated into one large plasmid.