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Damm [24]
2 years ago
12

A park ranger wants to increase the number of fragrant, sweet smelling flowers in the park. In the park, there are very few plan

ts with fragrant, sweet smelling flowers. Scientists think this is because plants with fragrant, sweet smelling flowers are often eaten by animals in the park before they can reproduce. The park ranger is planning to select only individuals of this plant species with fragrant, sweet smelling flowers to breed. The trait of fragrant, sweet smelling flowers is recessive (ff) in the species of plant. The goal is that all of the offspring will have fragrant, sweet smelling flowers, which the ranger can plant in the park. (AKS 3d, DOK 3)
Biology
1 answer:
lana [24]2 years ago
8 0

Answer:

ufufifudfufudufhfudhdy

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Please help i need to turn this in
makvit [3.9K]

Answer:

Normal Strand: alanine - methionine - histidine
Mutated Strand: glutamine - cysteine - no third amino acid.

Explanation:

<h3>mRNA Structure</h3>

Messenger ribonucleic acid (mRNA) is the RNA that is used in cells for protein synthesis. It has a single strand made by the transcription of DNA by RNA polymerase. It contains four nucleotides: Adenine (A), Guanine (G), Cytosine (C), and Uracil (U).

<h3>DNA Replication</h3>

Before transcribing, we need to create the complementary strand of the DNA. We're going to write out the nucleotides of the complementary strand by matching the nucleotides in these pairs: (A & T) and (C & G).

              Normal Strand: GCA ATG CAC
Complementary Strand: CGT TAC GTG

Next, we can transcribe this to find our mRNA. We're going to do the same thing to the complementary DNA strand, but with Uracils instead of Thymines. So our pairs are: (A & U) and (C & G)

Complementary DNA Strand: CGT TAC GTG
                        mRNA Strand: GCA AUG CAC

You'll notice that the mRNA strand is almost exactly like the new mRNA strand, but with Uracil instead of Thymine.

<h3>Reading Codons</h3>

Each set of three nucleotides is known as a codon, which encodes the amino acids that ribosomes make into proteins. To read the codons, you need to have a chart like the one I attached. Start in the middle and work your way to the edge of the circle. Some amino acids have multiple codons. There are also "stop" and "start" codons that signify the beginning and ends of proteins.

mRNA Strand: GCA AUG CAC
Amino Acids:   Ala   Met   His

Our sequence is alanine, methionine, and histidine.

<h3>Frameshift Mutations</h3>

A frameshift mutation occurs when a nucleotide is either added or removed from the DNA. It causes your reading frame to shift and will mess up every codon past where the mutation was. This is different than a point mutation, where a nucleotide is <em>swapped</em> because that will only mess up the one codon that it happened in. Frameshift mutations are usually more detrimental than point mutations because they cause wider spread damage.

<h3>Mutated Strand</h3>

Let's repeat what we did earlier on the mutated strand to see what changed.

              Mutated Strand: CAA TGC AC
Complementary Strand: GTT ACG TG
---
Complementary DNA Strand: GTT ACG TG
                        mRNA Strand: CAA UGC AC
---
mRNA Strand: CAA UGC AC
Amino Acids:   Glu   Cys   X
---
Our amino acid sequence is glutamine, cysteine, and no third amino acid.

As you can see, removing the first nucleotide of the strand caused every codon to change. The last codon is now incomplete and won't be read at all. If this happened in a cell, the protein that was created from this mutated strand would be incorrect and may not function completely or at all.

5 0
2 years ago
Read 2 more answers
A scientist working in which field of biology is MOST likely to study DNA?
mojhsa [17]
Information and heredity
4 0
3 years ago
Why do the cells transformed with PUC18 and plasmid lux grow in the presence of ampicillin?
Fofino [41]

Answer:

The bacterial cells transformed with PUC18 and plasmid lux grow in the presence of ampicillin, because the DNA of bacterial cells had incorporated parts of plasmid DNA and became ampicillin resistant.

Explanation:

The bacteria showing this property is mainly known as Escherichia coli (E. coli). These bacteria cells generally shows no growth in presence of antibiotic like ampicillin. Whereas when these cells are treated with PUC 18 and plasmid lux, then the bacterial DNA undergo certain transformation due to incorporation of strands of DNA of plasmid into them. This transformation make them resistance to ampicillin, when they are cultured in agar media with ampicillin in it.

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What type of plate collision does not result in subduction of one plate under the other
Burka [1]
Conversion is the only plate collision that doesn’t result in a subduction of one plate
6 0
3 years ago
I need helppp on thisss !!!
sergij07 [2.7K]

Answer:

H

Explanation:

8 0
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