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Stels [109]
3 years ago
8

Susan, a mother with type B blood, has a child with type O blood. She claims that James, who has type A blood, is the father. He

claims that he is not the father. Blood and DNA tests ordered by the judge reveal that James is homozygous dominant for type A blood. The judge rules that
a. James is right, he can not be the father

b. Susan is right, James is the father

c. Susan is not the real mother of the child and an error was made in the nursery

d. It is impossible to make a decision based on the limited data available
Biology
1 answer:
avanturin [10]3 years ago
4 0
The correct answer is A.
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From left to right, which is the sequence of the<br> complementary strand of DNA in this molecule?
ladessa [460]

Answer: Option A) A-C-T-T-G

Explanation:

The base sequence on a strand of DNA is usually paired to specific complimentary bases. These specific pairings are as follows:

Adenine (A) pairs with Thymine (T)

Guanine (G) pairs with Cytosine (C). So when you find A replace with T, so also replace C with G and vice versa.

Thus, the complimentary sequence of the T-G-A-A-C DNA strand is A-C-T-T-G

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3 years ago
Where does the magma or melted rock in volcanos originate?
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Answer:

b. from the mantle

Explanation:

7 0
3 years ago
Suppose you discovered a mutant yeast whose glycolytic pathway was shorter because of the presence of a new enzyme catalyzing th
Ganezh [65]

Answer:

The correct answer is  the formation of pyruvate from glucose willl be energetically less favorable.

Explanation:

According to the question matunt yeast has a shorter glycolytic pathay catalysing a follwing reaction

 Glyceraldehyde-3-phosphate+H2O+NAD+  = 3-phosphoglycerate

So in the mutatant the formation of 1,3- bisphosphoglycerate is not occurring.The glyceraldehyde-3-phosphate is directly converted into 3-phosphoglycerate.

    As a result the substrate level phosphorylation step that deals with formation of 3-phosphoglycerate from 1,3  bisphosphoglycerate is not occurring.

  From this point of view it can be said that less energy will be formed in the mutant during glycolysis than that of normal one.

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5 0
2 years ago
The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is ____.
IgorLugansk [536]

I do believe it is 25%

5 0
3 years ago
HELP
Anastasy [175]

Answer:

First, the activity that humans execute that affects their ecosystem positively is reforestation. Second, the activity that humans execute that affects their ecosystem positively is hunting. Their effects rely completely in nature, however, one improves the ecosystem by making it greener and increasing the space nature has to grow, while the other impacts the ecosystem negatively by unbalancing the food chain.

Explanation:

The reasons behind this answer are that in the first place the ecosystem is a very sensitive environment that can be affected by a wide range of factors. In the first place, reforestation helps the environment have better conditions for the animals that live in it, as well as to provide the human race a better quality of air, water and feel better after living in a more natural ecosystem. While hunting breaks the ecosystem's balance because it allows the food chain of the ecosystem to break and allow a general modification.

6 0
3 years ago
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