Bio: RNA Worksheet

Where does transcription take place?

In eukaryotic cell nucleus

_________ RNA is a single strand in a _______ shape that makes up _______ along with ______.

Transport, globular, ribosomes, proteins

20. If this is the sequence on the DNA template strand (AATCGGCTAAGC), what RNA nucleotides would be added?

UUAGCCGAUUCG

When the termination signal is reached, the RNA polymerase _______ both the template DNA and the newly made RNA strand.

detaches

The termination signal marks the end of a _____.

gene

18. Only __ strand of DNA is copied and it is called the ______ strand.

1, leading

What is the primary enzyme involved in transcription?

RNA polymerase

After transcription, the newly made ____ moves through the __________ of the nuclear envelope out into the cytosol.

RNA, nuclear pores

What is the sugar on RNA?

Ribose

Nucleotides in DNA are grouped together into ______ that code for the making of ______.

codons, proteins

19. RNA polymerase, after opening the DNA strand, adds____________ nucleotides (A, U, G, or C).

completmentary

Define transcription.

is the synthesis of RNA from a DNA template

mRNA is the nucleic acid that copies DNA's instructions in the nucleus & takes them to the cytosol.

mRNA

Name the 3 types of RNA and give their abbreviations.

messenger RNA (mRNA), ribosomal RNA (rRNA), transfer RNA (tRNA)

_________ RNA actually copies DNA's instructions in the nucleus & then moves to the ______.

messenger, cytosol

In eukaryotes, the genes (instructions for making proteins) are located in the ______, while the amino acids to make proteins are ___________________.

nucleus, found throughout the cell

Promoters mark the beginning of ___ gene in eukaryotes, but ____ genes in prokaryotes.

old, new

RNA polymerase attaches to sites on DNA called ______ which mark the beginning of the DNA chain that will be ___.

promoters, RNA

_____ is a single strand that is _______ and can bind to an ______ in the cytosol.

rRNA, ribosomal, small subunit

When RNA polymerase binds to the promoter, the DNA strands ____ and _____.

rebinds, detaches

What does RNA stand for?

ribonucleic acid

DNA is double stranded, while RNA is ______ stranded.

single

Transcription continues until RNA polymerase reaches a region on DNA called the ________.

stop codon

RNA does not contain the base ____, instead it contains the base ____.

thymine, uracil