DNA and RNA Composition
Structure of DNA and RNA
Functions of DNA and RNA
Heredity/Genetics
Punnett Square Practice
100
What are the three parts of a nucleotide?
A phosphate group, a pentose sugar, and a nitrogenous base.
100
What is the shape of DNA called?
Clue: It looks like a twisted ladder.
Double helix.
100
What is the main role of DNA in the cell?
To store genetic information.
100
What is the "blueprint" for building an organism?
DNA
100
How many offspring will have blue eyes?
Zero
200
What sugar is found in DNA?
Deoxyribose.
200
How many strands does DNA have?
Two strands.
200
What is the main role of RNA?
To help in protein synthesis.
200
Any change in DNA is called a _____________?
Mutation
200
What is the genotype ratio?
1:2:1
1 - AA
2 - Aa
1 - aa
300
What sugar is found in RNA?
Ribose
300
How many strands does RNA have?
One strand.
300
Which type of RNA carries the message from DNA to the ribosome?
Messenger RNA.
300
Alleles that are the same. Ex. AA or aa
Alleles that are different. Ex. Aa
Homozygous
Heterozygous
300
Cross a heterozygous parent with a heterozygous parent. Use the key below.
R = ROUND
r = wrinkled
Check boards(should be 3 round and 1 wrinkled)
400
Which base is found in RNA instead of thymine?
200 pts for Letter
400 pts for Word
Uracil.
400
What type of weak bond joins the bases in DNA?
Hydrogen bonds.
400
Which type of RNA brings amino acids to the ribosome?
Transfer RNA.
400
Distinguishing characteristics that are inherited from parents. Ex. eye color, height, skin tone
Traits
400
Cross a homozygous recessive with a heterozygous parent. Use the key below.
F = black fur
f = white fur
Check boards.(should have 2 with black fur and 2 with white fur)
500
Name the four bases in DNA.
Spell G to deduct 100 pts from a team.
Adenine, thymine, cytosine, and guanine.
500
Complete the base pairing rule in DNA:
A pairs with ___, and C pairs with ___.
Thymine, guanine.
500
Which type of RNA forms part of the ribosome?
Ribosomal RNA.
500
Physical characteristics. Ex. blue eyes, curly hair
Combination of alleles or genetic makeup. Ex. AA or aa
Phenotype
Genotype
500
Cross a homozygous recessive parent with a homozygous dominant parent. What percent of the offspring will be yellow? Use the key below.
G = green
g = yellow
Check boards(100% Green)
0% yellow