Individuals III-3 and III-4 are expecting their first child when they become aware that they both have a family history of this
recessive condition. As their genetic counselor, you can calculate the probability that they are carriers and that their child will be affected with the condition.
1.) The probability that III- 3 is a carrier (Rr) =
2.) The probability that III - 4 is a carrier (Rr) =
3.) The probability that IV - 1 will be affected (rr) =
Options are 1/4, 1/2, 1/16, 1/3, 3/4, 2/3, 1/12, 1/6
1.) The probability that III- 3 is a carrier (Rr) =
2.) The probability that III - 4 is a carrier (Rr) =
3.) The probability that IV - 1 will be affected (rr) =
Options are 1/4, 1/2, 1/16, 1/3, 3/4, 2/3, 1/12, 1/6
1 answer:
The genealogy tree which is missing from the question is in the attachment.
Answer: 1) P1 = ; 2) P2 =
; 3)P3 =
Explanation: 1) According to the genealogy tree, the individual III-3 has a P1 = 1/2, because each of the parents are heterozygous for the condition, since one of the ofspring is affected.
2) For individual III-4, one of the parents is heterozygous for the condition, so the probability of being a carrier is P2 = 1/2.
3) Now, for individual IV-1 be affected, the parents has to be carrier. So, this probability, depends on the probability of each parent being heterozygous and that the individual will be carrying the condition, which means:
P3 = 1/2 · 1/2 · 1/4 = 1/16.
The probability of having the condition is 1/16 or 6.25%.
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The plant on the right must have been the one given a saltwater mixture while the one on the left must have been given pure water.
<h3>Osmosis</h3>Looking at the attached image closely, one would see that the plant on the right has withered leaves while the leaves of the plant on the left seem to be flourishing.
The plant on the right must have been the one fed with water mixed with salt and here is the reason. Adding water mixed with salt to the soil on which the plant grows will decrease the water potential of the soil relative to the water potential of the plant's root. Thus, water will move from the plant into the soil through the root by osmosis. This will cause the various cells of the plant to become flaccid, and hence, the withered leaves.
On the contrary, the plant on the left must have been fed with pure water. Feeding the soil with pure water will increase the water potential of the soil relative to the water potential of the plant's root. Thus, water will move from the soil into the plant through the root by osmosis. This will cause the various cells of the plant to become turgid, and hence, the flourishing leaves.
More on osmosis can befound here: brainly.com/question/21395644
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