Representing Data
A teacher records how many minutes 30 students spend on homework each night. The teacher wants to show how many students fall within different time ranges, such as 0–15 minutes, 16–30 minutes, and 31–45 minutes.
Histogram
When we complete a monohybrid cross, we are talking about ____________ (one/multiple) trait(s).
One trait
How many traits are looked at when completing a dihybrid cross?
Two
A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. If one marble is selected at random, what is the probability of selecting a blue marble? Express your answer as a fraction
3/10
What is the one form we do not use to represent ratios?
Percentages
A class of 100 students votes for their favorite subject. The teacher wants to show what percentage of the students chose math, science, English, or social studies.
Circle graph
In a cross of two parents with the genotypes bb and bb, what is the only potential genotype?
bb
Genotypes in a dihybrid cross contain __________ traits and _______ alleles
Two traits and four alleles
A spinner has 10 equal-sized sections numbered 1 through 10. What is the probability of landing on a prime number (2, 3, 5, 7)? Express your answer as a fraction
4/10
A classroom has 12 boys and 18 girls. Write the ratio of boys to girls in simplest form.
12:18 -> 2:3
A group of students chooses their favorite after-school activity: sports, reading, video games, or art. A teacher wants to display how the students' choices are divided (into percentages) among the four activities.
In pea plants, tall stems (T) are dominant over short stems (t). What phenotype will a plant with the genotype Tt have?
Tall stem
Use the FOIL method to determine the FIRST gamete combination for the genotype AaBb.
F: AB
A student flips a coin 40 times and gets heads 24 times. What is the experimental probability of getting heads? Express your answer as a decimal
0.60
There are 8 students wearing glasses and 24 students not wearing glasses. What is the ratio of students wearing glasses to the total number of students? Simplify your answer.
24:32 -> 3:4
A teacher surveys 25 students about the number of pets they own. The teacher wants to organize the results in a table showing each number of pets and how many students own that number.
Frequency Table
Using the cross Tt × Tt, what fraction of the offspring will have the genotype tt?
2/4
Use the FOIL method to determine all possible gametes for the genotype TtPp. Write all four combinations.
F: TP
O: Tp
I: tP
L: tp
A genetic cross predicts that 25% of the offspring will have a recessive trait. If the parents produce 100 offspring, what is the theoretical amount of offspring with the recessive trait?
25
A gym has 20 basketballs and 12 soccer balls. What is the ratio of basketballs to soccer balls in simplest form?
20:12 -> 5:3
A student records the outdoor temperature at noon for 20 days. The student wants to group the temperatures into ranges and show how many days had temperatures in each range.
Histogram
Define Allele
One half of a gene. Represented by one letter.
In pea plants, tall stems (T) are dominant over short stems (t), and purple flowers (P) are dominant over white flowers (p). In a plant with the genotype TtPp, what phenotypes would show?
Tall and purple.
The theoretical probability of rolling a 6 on a fair number cube is 1/6. A student rolls the number cube 30 times and gets a 6 eight times. What is the experimental probability of rolling a 6? Express this in a fraction.
8/30
A basket contains 15 apples and 25 oranges. What is the ratio of apples to oranges in simplest form?
15:25 -> 3:5