What two types of nitrogenous bases pair together in DNA?
Adenine pairs with Thymine & Cytosine Pairs with Guanine
Where in the cell does transcription occur?
In the nucleus
Define Genetic Engineering
The intentional modification of an organism's genome using biotechnology tools
What is the genotype for a homozygous dominant individual using the letter a?
AA
Name one form of non-Mendelian inheritance
Codominance, Incomplete dominance, Multiple alleles
Name the molecule that forms the backbone of the DNA strand alongside phosphate groups.
What molecule carries amino acids to the ribosome during translation?
tRNA (transfer RNA)
Who is Dolly?
The first mammal cloned from an adult cell (1996)
Describe the following as Homozygous Dominant (HD), Homozygous Recessive (HR), or Heterozygous (HE):
rr
Rr
RR
Homozygous recessive
Heterozygous
Homozygous dominant
In incomplete dominance, what phenotype would RW individual show if R is red and W is white?
An intermediate phenotype (pink), a blend of red and white traits
DNA is made up of what?
A nucleotide (5 carbon sugar, deoxyribose, and a phosphate group)
Give the name for the stage in which mRNA is read to build a polypeptide
Translation
Give 1 potential benefit and 1 potential risk of using gene editing tools in agriculture
Benefit examples - Increased crop yields, disease resistance, cure for diseases
Risk examples - Unintended ecological effects, loss of genetic diversity, adverse health effects, designer babies
In complete dominance, will the following genotype show a dominant or recessive trait: rr
Recessive
What is the acronym to determine the gametes for a dihybrid cross and what does each letter stand for.
FOIL
First, outer, inner, last
What did Chargaff discover?
The base pair rule
A = T & C = G
A DNA coding strand has the sequence ATG GAA TCC GTT. Write the mRNA sequence produced during transcription
UAC - CUU - AGG - CAA
Identify two credible sources you would use to research.
Examples: peer - reviewed journals, government websites, professional organization statements
In a monohybrid cross between two heterozygotes, what is the probability an offspring will be homozygous recessive?
1 out of 4 or 25%
Predict the phenotypic outcome of a cross between blood type A (IAi) and blood type B (IBi). What possible blood types can offspring have?
Blood types A (IAi), B (IBi), AB (IAIB), or O (ii)
What are the two things that describe the structure of DNA?
Double helix and a twisted ladder
Use the following short mRNA sequence to determine the amino acid sequence.
AUG - GGC - UAU - UAA
Met - Gly - Tyr - Stop
Name 2 types of Biotechnology that we talked about in class.
Gel Electrophoresis, Polymerase Chain Reaction (PCR), DNA Cloning, Human Genome Project
Describe the terms heterozygous and homozygous.
Homozygous - 2 of the same alleles
Heterozygous - 2 different alleles
Set up a dihybrid cross between parents who are both heterozygous for two traits (AaBb × AaBb). What proportion of offspring are expected to show both dominant phenotypes?
9 out of 16