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balu736 [363]
3 years ago
12

Which of the following is the central issue underlying a problem that needs to be addressed

Biology
1 answer:
REY [17]3 years ago
7 0

Answer:

you didnt list the options

Explanation:

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Is a dead bird biotic?
seraphim [82]
Yes biotic means living or once living. it was living at one point so yes its biotic
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Over 1,800 mutations have been described within the CFTR gene. These mutations can be readily detected using PCR and DNA sequenc
sertanlavr [38]

Answer:

The correct answer is - option C.

Explanation:

CFTR is a short form of cystic fibrosis transmembrane conductance regulator protein which is caused by a recessive mutation in this protein. This mutation results in the accumulation of mucus in secretory organs.

As the disease is a recessive disease, for the mutant phenotype to expressed both copies of the allele required to be recessive.

The mother is negative for the CFTR. Hence, she will not transfer the mutant allele to her child So, the child would have a wild-type phenotype even if the father having two copies of recessive allele.

Thus, the correct answer is - option C.

8 0
3 years ago
What are the two types of eukaryotic cells​
Elena L [17]

Answer:

There are two types of cell, prokaryotic (bacteria) and eukaryotic (animal, plant, fungi and protoctista (unicellular organisms)). Prokaryotes have no nucleolus – the DNA is in the cytoplasm, and it can from small circular strands of DNA called plasmids. Eukaryotic cells all have their DNA enclosed in a nucleus.

Explanation:

5 0
3 years ago
Which of the following is a chemical reaction?
Ann [662]

C. Digestion of food

The answer is C because the rest of the answer choices are all physical reactions. In your stomach, food is chemically broken down by different substances.

➳ Hope this helps!

➳ CloutAnswers

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