Size it up!
Punnett square
Pedigree chart
100
What percentage of the offspring will grow tall? ________%
100
100
Complete the Punnett square, which shows a cross between two parents whose genes for blood type are AB. What children will they have?
AA, 2AB, BB
100
This Pedigree chart is incomplete. How many of the offspring should have been shaded?
all 4
200
According to the Punnett square, what is the probability of an offspring inheriting two tall genes?(Express your answer as a fraction or percentage.) __________
50% or 1/2
200
What percentage of plants are red?
What percentage of plants are white?
What percentage of plants are pink?
red = 0%
white = 0%
pink = 100%
200
How many generations of mice are shown?
2
300
Explain why both parent plants are tall, even though their genes for height are not exactly the same.
presence of a dominant trait (T) will result in tall plant
300
What is the genetic make up of the parent plants?
RW x RR
300
Which information about the offspring does the pedigree chart provide that is not provided by the Punnett square above?
who is male or female
or
we can see exactly how many offspring they actually had
400
Identify two offspring from the Punnett square that could produce short pea plants if they were crossed.
Offspring: ________ x ___________
Explain your answer.
Tt x Tt
each has to contribute a recessive gene (t)
400
Based on this Punnett square, identify the expected percentage of offspring in each of the four blood types. [1]
Blood type A: _______%
Blood type B: _______%
A = 50%
B = 25%
400
How many children did the original parents have?
4
500
What is the genetic makeup of two parents whose offspring would all be short?
tt x tt
500
Based on this Punnett square, identify the expected percentage of offspring in each of the four blood types. [1]
Blood type AB: _______%
Blood type O: _______%
AB = 25%
O = 0%
500
What is the total number of children and grandchildren who are colorblind in this family
2