PROBABILITIES

Probabilities are expressed as a number between __ and __.

0 1

The probability of a yellow-seed plant (YY) forming a Y gamete is ____% because the principle of segregation - one ______ of each gene pair goes to a ______; it only has "Y" alleles.

100 allele gamete

If you have two coins, the probability of both coming up heads from a flip of each is

25%

The second generation phenotypes resulting from the cross of true-breeding monohybrid pollination will display a ratio of:

3:1

The probability of having the combination of one head and one tail when flipping two coins is

50%

If you have a heterozygous yellow-seed plant (Yy), the probability of forming a "Y" gamete is ____. The probability of forming a "y" gamete is ____. This follows the principle of segregation.

50% 50%

When flipping a coin, the chance that it will come up a head is ____. If you flip the coin a second time, the chance that it will come up a head again is ____. Let us say that you have had 25 heads come up in 25 consecutive flips. If you flip the coin one more time, the chance of coming up with a head is ____.

50% 50% 50%

Members of a gene pair separate during meiosis and are found in separate gametes

principle of segregation

Genetics experiments on the breeding of plants or animals are based on the laws of

probability

The chance that a given event will occur

probability

The major probability principle demonstrated in this exercise is that when two events occur at the same time, the probability of each occurrence yielding the same result is the _______ of the probability of each separate event.

product

The probability of two independent events occurring together is the ___________ of the probability of each event occurring separately.

product

The calculation of probabilities is based on ______ events.

random

Using the group of cards just described in this section, the probability of drawing a red five is:

¹⁄₅₆