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Andrej [43]
3 years ago
15

What observation led researchers to purpose that chloroplasts evolved from Cyanobacteria

Biology
2 answers:
ArbitrLikvidat [17]3 years ago
8 0
Considering your talking about the a-d options Here is my answer
<span>A) Both produce proteins.
B) Both contain mitochondria.
C) Both provide structure to cells.
D) Both perform photosynthesis.

Answer is D</span>
devlian [24]3 years ago
8 0
Researchers were led <span>to propose that chloroplasts evolved from cyanobacteria because they observed that both of them perform photosynthesis. </span>
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which plane velocity was greatest? Yeagers Bell x-1, The Concorde, SR71 blackbird, none they all traveled at the same speed.
Stels [109]

Answer:

The SR-71 Blackbird.

Explanation:

The Lockheed SR-71 "Blackbird" was an American strategic reconnaissance aircraft that traveled at over mach 3, or 3 times the speed of sound. The Concorde was a French passenger jet with a top speed of just over mach 2. The Bell X-1 was the first supersonic test plane and had to be dropped from a larger plane to reach altitude.

3 0
3 years ago
If all 5' and 3' splice sites were always used to process the pre-mRNA into mRNA, how many possible distinct mRNA sequences woul
lord [1]

The question lacks the diagram. The diagram has been attached below.

Answer:

1.

Explanation:

Exons may be defined as the coding region of the RNA whereas introns are the non coding region of the RNA. The introns must be removed out from the RNA to makes it functional molecule.

The splicing of the given molecule results in the formation of single mRNA. The 1 splicing of the introns remove intron A whereas the second splicing results in the removal of intron B. The functional mRNA consists of the mRNA with exon 1,2 and 3.

Thus, the answer is 1.

6 0
3 years ago
In a population with two alleles, B and b, the allele frequency of b is 0.4. B is dominant to b. What is the frequency of indivi
Yuki888 [10]

Answer:

The frequency of the dominant (normal) allele in the population (p) is simply 1 - 0.02 = 0.98 (or 98%). The percentage of heterozygous individuals (carriers) in the population.

Explanation:

(i found it here if you have questions

Hardy-Weinberg - Kansas State Universitywww.k-state.edu › parasitology › biology198 › answers1)

4 0
3 years ago
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