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Andrej [43]
2 years ago
5

1. Which two structures are found in all plant epidermal cells? A cell wall and chloroplasts B cell wall and nucleus C chloropla

sts and starch grains D nucleus and starch grains
Biology
2 answers:
DochEvi [55]2 years ago
6 0

Answer:

Cell wall and chloroplasts is correct option.

Explanation:

Hope it will help ^_^

Soloha48 [4]2 years ago
5 0

Answer:

B. cell wall and nucleus.

Explanation:

the cell wall, cell membrane, nucleus, cytoplasm and a large vacuole are contained in all plant cells.

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A gel electrophoresis migration pattern displaying polymerase chain reaction (PCR) products shows four strong bands. The lengths
dangina [55]

Answer:

D) The encoded protein contains four repeats of a specific sequence.

Explanation:

The polymerase chain reaction is a technique used to replicate or amplify the amount of DNA sample.

The technique employs running the DNA samples on the gel through which the DNA samples run based on their sizes.

The large-sized DNA fragment runs to a less distance whereas the small-sized DNA run to a large distance.

In the given question, four sizes of DNA bands are formed in the ratio of  1:2:3:4 which shows that the proteins encoded by this DNA have four repeats of a specific sequence of the template strand. This was confirmed when the largest band sample was again used as a sample of PCR and the PCR resulted in the four bands in similar  1:2:3:4.  

Thus, Option-D is the correct answer.

3 0
2 years ago
If the force of ventricular contraction increases, what will happen to the end-systolic volume?
Oduvanchick [21]
I believe the end systolic volume would also increase...
7 0
2 years ago
How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?
adoni [48]

Answer:

The answer is B

Explanation:

5 0
2 years ago
Read 2 more answers
Scenario: Kenneth and Catherine Lohmann of the University of North Carolina explored the orientation or direction-finding abilit
UkoKoshka [18]

Answer:

Option A, shared their data with colleagues to obtain feedback on the work.

Explanation:

All researchers prefer to share their findings with their peers or other researchers working in the same field to get their reviews. This step is very essential as it makes the research authentic and removes the flaws that would have otherwise missed by the researcher.  

Peer reviewers also give useful suggestion to further modify one’s research study based on their experiences.  

Hence, option A is correct

8 0
2 years ago
Which of the following statements correctly describes the normal tonicity conditions for typical plant and animal cells?
sergij07 [2.7K]
The answer is C. the animal cell is in a hypertonic solution
8 0
2 years ago
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