RNA - Structure and Transcription

In RNA, the base adenine is paired with ____________________________ instead of _______________________________, as it is in DNA.
1. uracil / thymine
2. guanine / cytosine
3. thymine / cytosine
4. cytosine / thymine
Which of the following represents an RNA strand that would be transcribed from the DNA strand above?
Before leaving the nucleus, mRNA is protected with which of the following?
1. A 5' cap
2. A 3' poly-adenine tail
3. A special membrane
4. Enzymes called nucleases
Which of the following represents a sequence of bases as they might appear in RNA?
Which of the following is NOT a difference between RNA and DNA
1. they contain different sugars
2. DNA is double-stranded, and RNA is single-stranded
3. RNA leaves the nucleus; DNA does not
4. DNA has a sugar-phosphate backbone; RNA does not
The process by which RNA is made from a template of DNA is known as
1. replication
2. transcription
3. translation
4. duplication
Some viruses can make DNA from an RNA template. This process is known as
1. infection
2. reverse-transcription
3. reverse-translation
4. reverse-replication
The function of mRNA is to
1. control cell division
2. serve as a template for making proteins
3. backup the genetic information in case the DNA is destroyed
4. protect the nucleus from damage by enzymes
In eukaryotic cells, RNA is edited before leaving the nucleus. During the editing process
1. introns and exons are removed from the RNA
2. exons are removed from the RNA while the introns remain
3. introns are removed from the RNA while exons remain
4. introns and exons trade positions within the RNA strand
Other extra-nuclear RNA includes rRNA and tRNA. The "r" and "t" stand for
1. ribosomal and transfer
2. recombinant and thermal
3. reactive and time-sensitive
4. regular and thylakoid
The enzymes that makes an RNA molecule from a DNA template is known as
1. reverse transcriptase
2. RNA polymerase
3. DNA polymerase
4. exonuclease
RNA is made from a DNA template
1. in the nucleus
2. in the ribosomes
3. in the cytoplasm
4. in the labs of mad scientists