Vocabulary I
Vocabulary II
Vocabulary III
Punnett Squares I
Punnett Squares II
Punnett Squares III
DNA
Pedigrees
100
What is the study of heredity and genes called?
Genetics
100
Physical features such as brown eyes that are passed down are called what?
Traits
100
TT --> How do we classify this genotype?
homozygous dominant
100
Each box of a Punnett Square represents what?
25% possibility the offspring will get that genotype
100
How many alleles are needed for one parent in our Punnett squares?
two alleles (RR, rr, Rr)
100
Using the letter B/b, write the following genotypes:
Homozygous Dominant
Homozygous Recessive
Heterozygous
BB- Homozygous Dominant
bb- Homozygous Recessive
Bb- Heterozygous
100
Any change to the genetic code is considered a...
mutation
100
The roman numerals on a pedigree represent a...
Generation
200
What is the strong trait that will always show up called?
Dominant Trait
200
What is the trait that will be hidden, in the presence of the stronger trait, called?
Recessive Trait
200
_____________ is the passing of traits from parent to offspring.
Heredity
200
What goes on the sides of the Punnett Square?
Parent genotypes
200
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?
100%
200
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
200
In DNA A always pairs with _____ and C always pairs with _____.
T ; G
200
What are females represented as in pedigrees?
circle
300
What term represents an organism's physical appearance?
Phenotype
300
An organism's allele combination is called what?
Genotype
300
This term is used to describe a genotype that has two different alleles for a trait.
Heterozygous
300
How many possible genotypes are made when we do a Punnett Square?
4
300
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
300
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 dominant and one heterozygous parent?
0%
300
What is the complementary DNA sequence for the following genetic code:
ATC
TAG
300
Consider the pedigree for left-handedness below and answer: Is it a dominant or recessive trait?
Left-handedness is a recessive trait.
400
An organism with two different alleles for a trait is said to be...?
Heterozygous
400
An organism that has two identical alleles for a trait is said to be what?
Homozygous
400
If a cat is heterozygous for wavy fur, what is the DOMINANT allele?
wavy fur
400
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...
400
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...
400
These are two terms used to describe a genotype that has two of the same alleles for a trait.
Homozygous and purebred
400
This substance or energy may lead to changes in DNA.
Mutagen
400
How do you know that a trait is dominant in a pedigree?
There are no carriers; individuals are either affected or unaffected.
500
When we calculate how LIKELY an offspring will have a specific trait?
Chance or probability
500
A person with the genotype, rr is said to be ________ __________.
Homozygous Recessive
500
Parents mate and have...
offspring
500
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
500
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
500
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).
500
DNA is converted into ______ to make _______.
mRNA - proteins
500
what does this line mean?
1 and 2 are partners