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blondinia [14]
3 years ago
6

1pt Which of the following characterizes the process of trimming an mRNA transcript? A. The transcript can be trimmed at only th

e 5' end. O B. The transcript can be trimmed at only the 3' end C. The transcript can be trimmed at both ends. D. The transcript is trimmed to match the length of the protein.​
Biology
1 answer:
MissTica3 years ago
4 0

Answer:

the answer is d

Explanation:

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ASAP When you breathe in, you are creating a ______ concentration of oxygen in the lungs, causing the oxygen to move towards the
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Answer:

Creating a high concentration

Towards the low concentration

Explanation:

6 0
3 years ago
Does geographic distance between salamander populations increase their reproductive isolation? To answer this question, research
Nataly_w [17]

Question: Does geographic distance between salamander populations increase their reproductive isolation?  To answer this question, researchers studied populations of the dusky salamander (Desmognathus ochrophaeus) living on different mountain ranges in the southern Appalachian Mountains.  The researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. Four mating combinations were tested for each pair of populations (A and B)—two within the same population (female A with male A and female B with male B) and two between populations (female A with male B and female B with male A).  The proportion of successful matings for each mating combination was measured. For example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. Then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). The reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (AA + BB) minus the sum of the proportion of successful matings of each type between populations (AB + BA).

The table (Figure 1) provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.

Part A - Understanding experimental design

What hypothesis did the researchers test in this study?

Answer:

"Reproductive isolation increases with geographic distance between dusky salamander populations"

Explanation:

The mechanisms of reproductive isolation are a assemblage of evolutionary mechanisms, behaviors and physiological procedures dangerous for speciation. They avert followers of dissimilar types from manufacturing offspring, or confirm that any offspring are germ-free. While in allopatric speciation the reproductive isolation is resolute superficially by the spatial isolation of populations, during sympatric speciation specific groups of persons create distinct mating organizations with self-like persons while distribution the similar home with the rest of the unique inhabitants.

3 0
3 years ago
Suppose each trial equals 1,000 years. what is the half-life of virtualium?
elixir [45]
The half-life of Virtualium is 12
6 0
3 years ago
what would you use to measure an amount of solid sodium chloride(NaCl) crystals to add to a 30 mL solution?
larisa86 [58]

Explanation:

I would use a  digital weighing scale to perform the operation

the following steps should be considered.

1. Turn ON the digital scale

2. Zero the scale(this eliminate any previous measurements or default readings)

3. Place the dish on the scale and note the initial  readings

4. Place the sample of NaCl to be measured and note the final reading

5. Subtract the initial reading from the final reading

 The final reading is the amount of NaCl

4 0
3 years ago
There are conflicting opinions about the use of GM crops. Imagine this scenario: Today we are faced with diseases we have never
Lelu [443]

Answer:

no

Explanation:

not possible

8 0
3 years ago
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