You have three jars containing marbles, as follows: jar 1: 600 red and 400 white jar 2: 900 blue and 100 white jar 3: 10 green and 990 white If you randomly select one marble from each jar, calculate the probability of obtaining a red a and two whites .

The probability of picking a red and two whites is 0.0594

Explanation:

Probability = number of desired outcomes/number of possible outcomes.

The probabilities of obtaining a colour associated with each jar is given as follows:

Jar 1: total number of marbles = 600 +400 = 1000

Probability of Red, p(R) = 600/1000 = 0.6

Probability of White, p(W) = 400/1000 = 0.4

Jar 2: total number of marbles = 900 + 100 = 1000

Probability of Blue, p(B) = 900/1000 = 0.9

Probability of White, p(W) = 100/1000 = 0.1

Jar 3: total number of marbles = 990 + 10 = 1000

Probability of Green, p(G) = 10/1000 = 0.01

Probability of White, p(W) 990/1000 = 0.99

If marbles are randomly selected one marble from each jar, the probability of obtaining a red and two whites is the probability of picking a red from the first jar, a white from the second jar, and then a white from the third jar, given as p(R, W, W)

p(R, W, W) = (0.6)(0.1)(0.99) = 0.0594

Therefore, the probability of picking a red and two whites is 0.0594

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.

answer///multiple alleles;