Answer the questions below. If you need some help, GO TO Punnett Square Google Slides Presentation.
Answer the questions below. If you need some help, GO TO Punnett Square Google Slides Presentation.
For each genotype below, indicate whether it is heterozygous or homozygous.
HH
Ee
gg
Dd
Bb
Pp
AA
ff
heterozygous
homozygous
For each of the genotypes below determine what phenotypes would be possible.
Purple flowers (P) are dominant to white (p), Brown eyes (B) are dominant to blue (b).
PP = ; Pp = ; pp = ; BB = ; Bb = ; bb =
For each phenotype below, list the genotypes possible. (remember to use the letter of the dominant trait)
Straight hair is dominant to curly ;Tail spikes are dominant to plain tails.
To get straight hair the genotype must be ; for curly hair genotype must be .
To have spikes on the tail genotype must be ; no spikes will develop if the genotype is
Have you recognized the patterns?
In order for a dominant trait to show, the organism must have . In order for the recessive trait to show, the organism must have .
What percentage of the offspring from the cross above are tall?
What percentage are short?
What percentage of the offspring from the cross above have purple flowers?
What percentage have white?
Yellow peas are dominant to green peas.
A Pea plant homozygous for yellow peas is crossed with one that produces green peas.
How many of the offspring plants will be hybrids that are heterozygous?
In guinea pigs, the allele for short hair is dominant to long hair.
What genotype would a heterozygous short haired guinea pig have?
What genotype would a homozygous short haired guinea pig have?
What genotype would a long-haired guinea pig have?
Show the cross for two heterozygous short-haired guinea pigs.
What is the probability of the offspring having short hair?
What is the probability of the offspring having long hair?
Also in guinea pigs curly hair is dominant to straight.
Show the cross between two homozygous curly haired guinea pigs.
What would be the chances of getting a straight-haired offspring?
If two plants with purple flowers have offspring that show white flowers, which of the following must be true?
A guinea pig with short hair is crossed with one that has long hair. Over a period of many years, a scientist keeps records of the offspring and finds that 44 of them have curly hair and 46 of them have straight hair. Based on this data, what are the genotypes of the parents?
short-haired x long-haired
Show the Punnett square of this cross to explain your reasoning.