Punnett Squares
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross a red flower with a speckled flower. WHICH IS CORRECT ?
a. 2 red, 2 speckled
b. 2 red, 2 blue
c. 2 blue, 2 speckled
a. 2 red 2 speckled
Hh, Zz, Xx. Each of these are examples of _______________.
a. homozygous
b. heterozygous
c. dominant
d. recessive
b. heterozygous
A _______________ trait is a trait that is expressed or shown (capital letter).
a. genotype
b. phenotype
c. dominant
d. recessive
c. dominant
A red flowered plant (RR) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have red (RR) flowers?
a.0%
b.25%
c.50%
d.100%
a. 0%
A pair of alleles that are the same are called __________________ HH, dd, MM.
What is homozygous.
A chart used to predict the traits of offspring is ________________ .
What is the Punnett Square.
Complete a Punnett square someone who is heterozygous for tall and for someone who is homozygous for short.
T=Tall
t=short
What is Tt, Tt, tt, tt
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross two speckled flowers and determine the PHENOTYPE OF THE OFFSPRING
a. 1 red, 2 speckled, 1 blue
b. 2 red, 2 blue
c. 2 blue, 2 speckled
d. 1 red, 1 speckled, 2 blue
a. 1 red, 2 speckled, 1 blue
A ______________ trait is a trait that is hidden by the dominant gene.
a. heterozygous
b. homozygous
c. dominant
d. recessive
d. recessive
Both traits of the parents traits combine to form a new trait (neither is dominant) Red + White = Pink
THIS IS WHAT?
Incomplete dominance
Complete a Punnett square for someone who is Homozygous for green eyes and someone who has blue eyes. Green is dominant over blue.
G= Green
g= blue
What is Gg, Gg, Gg, Gg.
Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring will be calico (black and tan spotted) if a Calico male cat (BT) with a Tan female cat (TT)?
a. 25%
b. 50%
c. 75%
d. 100%
b. 50%
___________________ describes a pair of alleles and is represented by letters such as Tt or TT.
a. genotype
b. phenotype
c. homozygous
d. heterozygous
a. genotype
Both parents' traits are dominant so they both show (Ex. Stripes or dots- Black+ White = Black + White)
THIS IS WHAT ?
Codominance
Explain the difference between incomplete and codominance in your own words
incomplete dominance, the offspring do not exhibit the traits of either parent (mix or new trait) red + white=Pink,
while in codominance, the offspring exhibit the traits of both parents red + white = red + white ( stripes, spots, or patches).
__________________ is simply the expression of the genotype. It is how the trait is expressed (ex. dark hair, tall, eye color)
a. genotype
b. phenotype
c. dominant
d. recessive
b. phenotype
Different forms of genes or traits. Example Hair color, eye color
a. genotype
b. phenotype
c. alleles
d. dna
c. Alleles