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The pedigree below tracks Duchenne Muscular Dystrophy (DMD) through several generations. DMD is an X-linked recessive trait.
If individuals I-1 and I-2 had another son, what is the chance that he would have DMD?
Choose 1 answer:
(choice A)
A
0%
(choice B)
B
25%
(choice C)
C
50%
(choice D)
D
100%
Answers
The image provided is not clear, however, the correct and clear image is attached with the answer:
Answer:
The correct answer is - 100 %
Explanation:
As we know DMD or Duchenne Muscular Dystrophy is a sex-linked recessive disorder and according to the given pedigree, it is clear that Individual I-1 is a normal male and 1-2 is a female who has two defective genes of the disorder as if she had only one defective gene she would have a carrier for the disorder.
All gametes produced by both male and female would be -
Male - X and Y
Female - Xd and Xd
Therefore all the male offsprings or son will get one defective gene Xh from the mother for sure and a Y chromosome from the father. All daughters will also carry one gene Xh that is defective from the mother and normal X from the father but would be carriers for the disorder.
Answer:
CORRECT (SELECTED)
100%.
Explanation:
Because individual I-2 is affected, she can only pass on a recessive DMD allele to her sons. This means that all of her sons will have DMD.
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Charles Darwin is the father of evolution.
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о
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D. Male birds of certain species developing colorful feathers to attract female mates
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Explanation:
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Answer:
D. The physical appearance
Explanation:
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O D. A strand of DNA
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Answer:
c) A protein
Explanation:
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A protein
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Translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis.
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-Dream
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B. population
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Answers
Answer:
B. population
Explanation:
CORRECT
Evolution is any change in the heritable traits within a population. Therefore, option (B) is correct.
What is evolution?Evolution is the process by which populations of organisms change over time through the gradual accumulation of genetic variations. It is the central concept of modern biology and provides a framework for understanding the diversity of life on Earth.
Evolution occurs through the mechanisms of natural selection, genetic drift, gene flow, and mutation. Over time, genetic variations that confer a survival advantage in a particular environment become more common in a population, while those that are detrimental or neutral are selected against.
This process can lead to the emergence of new species, as well as the extinction of others. The study of evolution has practical applications in fields such as medicine, agriculture, and conservation, and helps us understand our place in the natural world.
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Answer:
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The correct answer is:
Option D. Fermentation does not require oxygen
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Answer:
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Answer:
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Need help ASAP please and thanks
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The answer is G
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hello
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have a nice day
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