Name: _________________________
Unit 5: DNA, RNA, Replication and Transcription Review
Directions: Fill in the crosswork using the statements below (There is a word bank on the back of this paper if you need it! But try your best to do the crossword puzzle without peaking at it!) Across
Down
1 Write the complimentary mRNA sequence for this DNA
2 DNA is coiled and condensed to form a ________
sequence: AATCGAC
4 DNA codes for RNA through the process of _________
3 The full name for DNA
5 The smaller molecule that is made from DNA
6 A base that is found in DNA and not RNA
so the genetic code can be carried to the ribosome
8 Write the replicated DNA sequence of ATGCTAG
7 An important characteristic of hydrogen bonds is that they’re_____
10 DNA ___________ is the enzyme that unzips the double helix
9 The nitrogen base that pairs with cytosine
12 The part of a nucleotide that differs between DNA and RNA
11 A base that is found in RNA and not DNA
13 DNA is called "__________ replication" because when DNA
14 Building block of nucleic acid
replicates, each molecule contains one old DNA strand & one
16 The number of strands that RNA has
new DNA strand
15 A section of DNA that codes for a trait
17 The full name for RNA 18 DNA cannot leave the nucleus
because it is too ______________
19 The organelle where DNA replication occurs
20 Before a cell divides, it must ___________ its DNA
1. Replicate this DNA strand: DNA STRAND: A T REPLICATED: G C G T T A G C T A A A T T G A C G A 2. Transcribe this DNA strand to mRNA DNA: A T G C mRNA: 3.
Why does transcription have to occur? 4.
Fill in the blanks: DNA transcription occurs in the ____________________________ and creates single stranded _______________. This single stranded _________________ travels to the _______________________ to complete the synthesis of _______________________________. Therefore, DNA controls the production of ____________________________ and our _________________________________ determine our characteristics or _____________________. Word Bank for Crossword Puzzle
Weak Uracil
Transcription
Thymine
TACGATG
Sugar
Single
Semiconservative
RNA
Ribonucleicacid
Replicate
Nucleus
Nucleotide,
UUAGCUG
Large
Helicase
Guanine
Gene
Deoxyribonucleicacid
Chromosome