Physical features such as brown eyes that are passed down are called what?
Traits
TT -->
He, ho dominant, or ho recessive??
homozygous dominant
Each box of a Punnett Square represents what?
25% possibility the offspring will get that genotype
How many alleles are needed for one parent in our Punnett squares?
two alleles (RR, rr, Rr)
Using the letter B/b, write the following genotypes:
Homozygous Dominant
Homozygous Recessive
Heterozygous
BB- Homozygous Dominant
bb- Homozygous Recessive
Bb- Heterozygous
In this situation, the heterozygous individual is a blending or in-between phenotype.
Incomplete Dominance
Any change to the genetic code is considered a
mutation
What do pedigrees do?
Track traits passed down through generations.
how many planets are there?
8
What is the strong trait that will always show up called?
Dominant Trait
_____________ is the passing of traits from parent to offspring.
Heredity
What goes on the sides of the Punnett Square?
Parent genotypes
In cats, L = long hair and l = short hair. Create a Punnett Square for two short-haired cats.
What is the probability their kitten will be short-haired?
In reindeer, spotted fur is dominant and spotless fur is recessive. What are the possible genotypes for spotted fur? Use F and f,
Ff and FF
In this situation, both alleles will appear in the heterozygous individual.
DoDominance
In DNA A always pairs with _____ and C always pairs with _____.
T ; G
How are punnet squares and pedigrees different?
Punnet squares show possibilities for the offspring and pedigrees show how traits and or diseases are passes down.
True or false: birds are most closely related to dinosaurs.
true
An organism's allele combination is called what?
Genotype
These are two terms used to describe a genotype that has two different alleles for a trait.
Heterozygous or Hybrid
How many possible genotypes are made when we do a Punnett Square?
4
In a Punnett Square crossing two parents that are hybrids for their brown eyes, this is the ratio of the genotypes.
BB 1 : Bb 2: bb 1
In seals, W = long whiskers and w = short whiskers. What is the probability of producing offspring that will have short whiskers in a cross of one homozygous domninant and one heterozygous parent?
0%
The following picture is an example of
Codominance
What is the complementary DNA sequence for the following genetic code:
ATC
TAG
What are females represented as in pedigrees?
Circle
what is pluto?
dwarf planet
An organism that has two identical alleles for a trait is said to be what?
Homozygous
If a cat is heterozygous for wavy fur, what is the DOMINANT allele?
wavy fur
Complete a Punnett square for the following scenario: A homozygous dominant dad crosses with a homozygous recessive mom. Use N and n to create your Punnett Square.
Get Punnett checked...
Complete a Punnett square for the following scenario:
A heterozygous dad crosses with a homozygous recessive mom. Use R and r.
Get Punnett square checked...
These are two terms used to describe a genotype that has two of the same alleles for a trait.
Homozygous and purebred
The following picture is an example of
Incomplete Dominance
This can potentially lead to a change in the structure/shape of a protein
mutation
What are males represented as in pedigrees?
square
How many chambers does the heart have.
4
When we calculate how LIKELY an offspring will have a specific trait?
Probability
A person with the genotype, rr is said to be ________ __________.
Homozygous Recessive
The F1 generation is ...
the first generation of offspring produced by a set of parents.
Draw a Punnett square, and answer the following question: What is the probability of having a child with blue eyes, when a heterozygous father is crossed with a blue eyed mother? Blue eyes is a recessive trait.
50% blue eyes
50% brown eyes
Draw a Punnett square, and answer the following question: What is the probability of having a child with blue eyes, when a homozygous dominant father is crossed with a blue eyed mother?
blue eyes is recessive.
0% blue eyes
Brown hair is dominant over blonde hair. This is how it is possible for two brown haired parents to have a blonde haired child.
Both parents are carriers of the blonde hair gene or they are heterozygous (hybrid).
In snapdragons, red (RR) and white (rr) flowers were bred and produced all pink flowers. The pink flowers were then crossed. What percentage of the offspring are white?
25%would be white (rr)
______________ read ___________ in the DNA to make proteins.
Ribosomes read genes
what does this line mean?
marriage / mated