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3 years ago

Which best describes how our understanding of DNA and inherited traits has changed over time

Biology

1 answer:

MAVERICK [17]3 years ago

4 0

<h3>Answer;</h3>

It was developed by many scientists over many decades.

<h3> Explanation;</h3>

DNA is a type of nucleic acid that contains two long, twisted strands, known as double helix, that contain complementary genetic information.
A gene is a segment of DNA that is passed down from parents to children and confers a trait to the offspring.
The traits an organism displays are ultimately determined by the genes it inherited from its parents, known as genotype.
Our understanding of DNA and inherited traits has changed over time since it has been continuously developed by many scientists over may decades.

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What is a microscope

Kazeer [188]

Answer:

an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope.

4 0

3 years ago

masteringbio JFor each of the studies described below, indicate if it is hypothesis driven and whether the scientist is employin

juin [17]

Incomplete question. The remaining part of the question read;

Words in the left column:

Yes
No
Observational
Manipulative

1. A physiologist incubates eggs in the lab at a range of temperatures to see what temperatures produce males and what temperatures produce females.

2. A biologist predicts that shade might influence ground temperature, and therefore turtle sex ratios. He records the sex ratio of turtle hatchlings in shaded and unshaded regions

3. An ecologist predicts turtles grow larger when no predators are around. She places turtles in an experimental pond system where half the ponds have predators and half the ponds have had the predators removed.

4. A climatologist predicts that concentration of CO2 in a city will be negatively correlated with the amount of wind in that city. He collects data and looks at the amount of CO2 in a city as a function of the wind speed in the city.

5. A sociologist conducts a survey in Hawaii to describe people's attitudes about global climate change.

6. A scientist determines the average wind speed, and variation in the amount of wind, in a number of locations to see which locations would be most suitable for wind turbines

Answer/Explanation:

1. Hypothesis-driven? Yes!

Observational or Manipulative? Observational.

We can make this conclusion here that the physiologists' research is hypothesis-driven since we are told he wanted to "see what temperatures produce males and what temperatures produce females." In other words, he wanted to know whether the temperature used in incubators can influence the sex of an egg by means of observation.

2. Hypothesis-driven? Yes!

Observational or Manipulative? Observation.

3. Hypothesis-driven? Yes!

Observational or Manipulative? Manipulative.

We can make the conclusion that is the ecologist used the manipulative method in her research since she decided to place the turtles in two different types of ponds; one where half the ponds have predators while in the other the pond the predators have been removed. In other words, she manipulated the independent variables.

4. Hypothesis-driven? Yes!

Observational or Manipulative? Observational.

Note, the use of the word, "predicts" in most instances underscores the tone of hypothesis-driven research, hence we can say Yes! And remember, we are told the researcher "collects data", meaning he is merely observing differences that occur naturally.

5. Hypothesis-driven? No!

Observational or Manipulative? Observational.

6. Hypothesis-driven? No!

Observational or Manipulative? Observational.

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3 years ago

How could you now analyze or interpret how social reality affects our daily function as individual or as a social worker? If yes

alexgriva [62]

Answer:

Concerts, sports games, and political rallies can have very large crowds. When you attend one of these events, you may know only the people you came with. Yet you may experience a feeling of connection to the group. You are one of the crowd. You cheer and applaud when everyone else does. You boo and yell alongside them. You move out of the way when someone needs to get by, and you say “excuse me” when you need to leave. You know how to behave in this kind of crowd.

It can be a very different experience if you are travelling in a foreign country and find yourself in a crowd moving down the street. You may have trouble figuring out what is happening. Is the crowd just the usual morning rush, or is it a political protest of some kind? Perhaps there was some sort of accident or disaster. Is it safe in this crowd, or should you try to extract yourself? How can you find out what is going on? Although you are in it, you may not feel like you are part of this crowd. You may not know what to do or how to behave.

Explanation:

I don't have enough knowledge about this hope it helps

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3 years ago

During the drought of 1977 on the island of Daphne Major, which of the following answers correctly explains why birds with

Len [333]

Answer:

These birds with large beaks were better able to utilize the large seeds.(B)

Explanation:

8 0

3 years ago

Read 2 more answers

One of the many tests done during urodynamic studies is the sphincter electromyelogram. What does this test study

eduard

One of the many tests done during urodynamic studies is the sphincter electromyelogram. This test studies activity of the voluntary muscles of the perineal area.

Patients with urine incontinence or other symptoms of the lower urinary tract can be diagnosed with urodynamic testing.
Both men and women take these examinations. Nerve and muscle function are measured by urodynamic testing.
Clinically, perineal sphincter electromyography may be helpful in assessing individuals with bowel, urinary, and sexual dysfunction.
All patients with a history and clinical examination that point to a central or peripheral sacral neuropathic lesion should be given this option.
The pudendal nerve innervates the external sphincter (EAS), which is the best muscle for identifying neuropathic lesions in lower sacral myotomes.

learn more about urodynamic studies here: brainly.com/question/10448206

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8 0

2 years ago

Read 2 more answers