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3 years ago

Why does DNA replication have such accuracy ?

1 answer:

5 0

Because human DNA is so very long (with up to 80 million base pairs in a chromosome) it unzips at multiple places along its length so that the replication process is going on simultaneously and more accurately.

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If a purple plant cross-breeds with a yellow plant and almost all of the resulting "child" plants are yellow, which is the domin

Sergio [31]

Yellow would be more dominant because most of the kids are yellow so it is more dominant

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3 years ago

Read 2 more answers

What is the difference between selective and cross breeding ?

Zinaida [17]

SELECTIVE BREEDING INVOLVES CHOOSING PARENTS WITH PATICULAR CHARACTERISTICS TO BREED TOGETHER AND PRODUCE OFFSPRING WITH MORE DESIRABLE CHARACTERS . ... CROSS BREEDING INVOLVES TWO DIFFERENT BREEDS FROM THE SAME SPECIES TO CREATE A NEW BREED

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2 years ago

14. Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described

Afina-wow [57]

When conducting an experiment, there are different aspects to consider, such as the question that drives to the reseach, the hypothesis, theoretical framework, variables involved -independent, dependent, and controll-, methodology, study groups, data analisys, among others.

In the exposed example, Pincky is lacking theoretical framework, defining which are the study groups, methodology to collect data, and a description of data analysis.

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The scientific method is a research method that consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on two aspects: reproducibility, which is the capability of reproducing the experiment in any other place by any researcher, and refutability, which is the susceptibility to be refused.

When conducting an experiment, you need to consider,

• Definition and problem statement. The question for which there is not an answer yet.

• Hypothesis formulation. A hypothesis is a scientific conjecture, not verified, that requires corroboration.

• Data collection and analysis. This step involves testing the observations.

• Results

• Verification of hypothesis. This step involves the deriving of the working hypothesis.

• Discussion and Conclusion.

Previous knowledge about the study object is always required for a better understandig. A question the investigator wants to answer. The main goal of the study, which is basically what the investigator wants to find out. The researcher makes a hypothesis to predict what is going to happen. The experiment is to be performed to answer the question. The conclusions through which the hypothesis might be rejected or accepted.

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So in this experiment there must be,

Theoretical framework, such as information about the species, life stage at which they begin chirping, about external factors that might affect it or benefit it, and etcetera.

The goal: To know how temperature affects cricket´s chirping

Hypothesis: Crickets chirp less frequently under cold temperature than under warm temperature.

Variables: Temperature → Independent

Chirp frequency → Dependent

Water and food supply, light exposure, refuge → Controlled

Study groups: group of crickets exposed to a warmer temperature

group of crickets exposed to a colder temperature

Methodology: Individuals analyzed should be in the same development stage, or at least be sexually mature. Two groups of 10 individuals each should be placed under the same conditions, excepting for temperature. One of the groups should be exposed to warmer temperatures and the other one to lower temperatures. Chirps should be recorded for a week.

Data analysis: Using the chirps records, the frequency can be measured for each group. Results should be compared using different statistical analyses.

Results: Results should be clearly exposed, using texts, charts, and graphs.

Discussion and Conclusion: Hypothesis acceptance or rejection. Discussion about the expected results against the observed ones.

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Related link: brainly.com/question/17645242

3 0

2 years ago

Which of the following is NOT one of the processes that shapes the Earth's features?

Alexus [3.1K]

Answer: D, all are processes that shape Earth's features. I don't know if this was a choice answer but, hope this helps. :)

Explanation:

5 0

3 years ago

A split-brain patient sees something in her left visual field, and must reach behind a screen and select the object from a group

choli [55]

A split-brain patient sees something in her left visual field and must go after a screen and choose the object from a group of objects. she will choose the object perfectly with her left hand.

<h3>What can a split-brain patient do if they see something in the left visual field?</h3>

The fact that split-brain patients can only accurately respond to stimuli in the left visual field with their left hand and to stimuli in the right visual field with their right hand and vocally is another important component of the conventional view.

Patients with split brains can still walk, swim, and ride a bike, which are motor abilities that need both sides of the body and were taught before the onset of their disorder. They can also pick up new skills that require them to move their fingers or hands in parallel or mirror images.

A split-brain patient must reach behind a screen and choose the object from a collection after spotting it in her left visual field. She will use her left hand to make the proper selection of the item.

To learn more about split-brain patient refer to:

brainly.com/question/24879413

#SPJ4

5 0

1 year ago