Probability & Heredity

What is probability?

Answer explanation

Probability is the number that describes how likely it is that an event will occur.

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

How can a probability be expressed? (More than one correct answer)

• As a fraction

• As a percent

• As a decimal

• In words

The laws of probability predict what is likely to occur, not necessarily what WILL occur.

• true

• false

Suppose 3 out of 12 coins landed with tails up. How can you express this as a percent?

Answer explanation

1. Write the comparison as a fraction: 3/5

2. Multiply the fraction

by 100 to express it as a percent 3/5 x 100/1 = 60%

Tags

NGSS.HS-LS3-3

Draw a Punnett Square with the letters Bb and bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The outcome of tossing a coin is based on probability, how is this similar to the outcome of a genetic cross?

Answer explanation

The allele that each parent will pass on to its offspring is based on probability.

Tags

NGSS.HS-LS3-3

An organisms _______ is its physical appearance, or visible traits.

An organisms genetic makeup or allele combination is its

• traits

• genotype

• alleles

• phenotype

Tags

NGSS.HS-LS1-1

An organism that has two identical alleles for a trait is said to be _________.

An organism that has two different alleles for a trait, such as Bb is known to be (more than one correct answer)

• heterozygous

• purebred

• homozygous

• hybrid