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Finger [1]
2 years ago
13

Speciation occurs when:

Biology
2 answers:
Alecsey [184]2 years ago
6 0

Answer:

D. all of the above

Explanation:

Gnoma [55]2 years ago
5 0

Answer:

I believe that it is C.

Explanation:

please tell me if I'm wrong

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Which of the following structures: make energy for the cell
Anna35 [415]

Answer: mitochondria

Explanation:Animals and plants are made up of many complex cells called eukaryotic cells. Inside these cells are structures that perform special functions for the cell called organelles. The organelle that is responsible for producing energy for the cell is the mitochondria And cellular respiration.

6 0
3 years ago
Using the allele D to stand for a dominant sex-linked trait, show a cross with a woman who does not have a dominant sex-linked d
Mazyrski [523]

Answer:

There is no chance at all that the disorder carries out to their children that's if the woman has two dominant traits DD. If the woman has One dominant and one recessive Dd there is a 50% chance their kids may get the disorder.

Explanation:

3 0
3 years ago
which best describes the correct pairing of dna bases? A. T with T, and C with C. B. T with A, C with G, C. T with G, A with C.
ikadub [295]
T with A and C with G
3 0
3 years ago
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White raven [17]

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8 0
2 years ago
Read 2 more answers
Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic rati
umka2103 [35]

Answer:

The correct answer is- 4:0

Explanation:

Marfan syndrome is a genetic problem which affects the connective tissue in the body. The trait for this disease is autosomal dominant which means even one abnormal copy of this gene in the offspring or individual is sufficient to cause this syndrome.

Let S is the allele that is dominant for this syndrome and s is recessive. So if a cross between homozygous dominant(SS) and heterozygous individual (Ss) occurs than all the offspring would have this syndrome.  

                                   S      s

                              S  SS   Ss

                              S  SS   Ss

Therefore all 4 offspring would have at least one dominant allele which is sufficient to cause this syndrome. So the phenotype ratio would be 4:0.

                       

3 0
3 years ago
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