Download Biology Topics, Venn diagrams

DNA vs. RNA
• Provides instructions
for protein synthesis
• 2 stranded, double
helix structure
• Sequence of three
bases calls for
particular amino acid
• Found in nucleus
• Replicates
• Eukaryote
• Without RNA,
DNA cannot be
decoded,
transported, or
synthesized
• Nucleic acid
• Both essential for
protein synthesis
• Have 4 nitrogen
bases
• Monomer
nucleotide
• Phosphate sugar
backbone
• mRNA retrieves
DNA from nucleus
• tRNA translates
these instructions
• rRNA synthesizes
protein
• 1 strand molecule
• Contains ribose
sugar
• Found in
cytoplasm
Mitosis vs. Meiosis
• Division and
reproduction of
most body cells
• Starts with one
diploid cell and
result in two
daughter cells
• Tetrads cross over
in prophase 1
• Results with same
number of
chromosomes as
parent cell
• Cell division
and
reproduction
• Asexual
• Start with one
parent cell
• DNA replication
• Division and
reproduction of sex
cells
• Start with one
diploid cell and
result in four haploid
cells
• Produces gametes
• Cells produced are
not identical
• Two rounds to
produce daughter
cells
• Homologs pair in
prophase 1
Transcription vs. Translation
Step 1
•DNA unzips
•mRNA nucleotides
bond to complementary
DNA bases
•Message or code
obtained by mRNA from
DNA
•DNA can’t leave
nucleus
• Depend on
each other to
make protein
Step 2
•mRNA carries message
to ribosomes
•Ribosomes can’t read
code until tRNA brings
amino acids and bonds
with codon
•Takes place in cytoplasm
•mRNA scanned by rRNA
•Protein synthesized