7. (True Story) In Denmark, a husband and wife who had been unsuccessfully trying to have a
baby went to a fertility clinic. Sperm and eggs were collected from father and mother, and
combined in a petri dish, creating several "test-tube babies". These babies were implanted in the
mother and 9 months later she ſlelivered twins, one with lightly pigmented skin and one with
darkly pigmented skin. Because this seemed strange, a DNA test was conducted and it was
found that both children were related to the mother, but only the light skinned child was related to
the father. How can this be explained? (Hint, there was no infidelity)

Answers

Answer 1

Answer:a

a possible explanation for this occurrence is that a test tube or dropper was accidentally used repeatedly without being sterilized, causing sample cross-contamination. DNA in this test case did not confirm that the father of the second child was another client of the fertility clinic who had never met the mother...therefore this is a possibility.

Explanation:


Related Questions

Can someone help me ASAP??

Answers

Answer:

c

Explanation:

If a thin haired woman (bb) has a child with a full haired man (B-), then what is the chance each of their girls will have thin hair?

Answers

Answer: 50%

Explanation:

......................................................peridot​

Answers

Answer:

It's C. They are mostly made up of hydrogen and helium

Severe acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms, including a high fever, headaches, and body aches, typically occur two to seven days after infection by the virus. This information suggests that the reproductive cycle of the SARS virus is - lysogenic, because the virus is a coronavirus. lysogenic, because the virus is a coronavirus. lysogenic, because the virus primarily affects older people. lysogenic, because the virus primarily affects older people. lytic, because the virus causes respiratory illness. lytic, because the virus causes respiratory illness. lytic, because of the quick onset of symptoms after infection.

Answers

Answer:

lytic, because of the quick onset of symptoms after infection

Explanation:

As seen in the question above, the SARS virus tends to develop symptoms very quickly when it is infecting a person. This speed in the development of symptoms is a characteristic of the lytic cycle, in relation to the reproductive cycle of viruses. This is because in the lytic cycle, a virus can infect many cells at once, which accelerates the development of the disease. This cycle allows the virus to use all of the cell's biological machinery to reproduce more copies of the virus. When these copies are ready, the virus causes the destruction of the host cell and the release of new viruses to other cells, where the whole process will be repeated. This is all done very quickly.

The lysogenic cycle does not cause the rapid infection of thousands of cells, since it is necessary that there is an adaptation between the DNA of the cell and the DNA of the virus. This slows down the infection process and, therefore, symptoms appear more slowly.

Answer:

lytic, because of the quick onset of symptoms after infection

Explanation:

I just took the Test

Answer the question in the image!

Answers

Answer:

canidae! hope thats correct

The answer is canidae

What's something you liked or found interesting about any one of the episodes of the aquarium? (Make sure to write at least 4 sentence).​

Answers

Answer:

An interesting episode of the aquarium I had was seeing a dolphin show. The dolphin was super smart, and I have to admit it was smarter than me. I mean I was like 3 when I went there so, I guess that is normal? Anyways, the dolphin was doing cool tricks like twist jumping, and even I tried it but failed. The dolphin went to the worker when the worker called its name. I learned that day that you shouldn't underestimate dolphins because they are smart.

Explanation:

This is an example, so do not copy. You may get inspired.

1 sentence:introduction(aka what you liked or found interesting stuff about the aquarium)

2-4 sentence:the main area(talking about what happened)

1 sentence:conclusion

What systems play a part in getting rid of waste materials from the body? What waste does each system eliminate?

Answers

The excretory system removes metabolic wastes from the body. The major organs of excretion are the kidneys, a pair of bean-shaped organs located below the liver. The kidneys filter blood and regulate water balance in the body. Hope this helps! Mark brainly please!

Answer:

The cells of the body produce waste materials. The body needs to get rid of these waste materials because they can make us sick. Getting rid of this waste keeps us healthy.

What insect/animal improves the fertility of soil by breaking down once-living matter and aerating soil?

Answers

Answer:

please give me brainlist and follow

Explanation:

Earthworms pass both soil and organic matter through their guts, in the process aerating the soil, breaking up the litter of organic material on its surface, and moving material vertically from the surface to the subsoil.

what are the feeding habits of an earthworm?
~(✿^‿^)~ helo pls​

Answers

Answer:

Earthworms enhance the soil by their burrowing and feeding habits. Earthworms basically eat their way through the soil, and they have a tremendous ability to process the dirt they live in. Some studies suggest that in one acre of top soil, earthworms consume and mix more than 20 to 40 tons of soil per year.

Hope it helps

two cause and use of modification of root​

Answers

Answer:Modified roots may perform functions such as support, respiration, and storage. ... Conical, fusiform, napiform are tap root modification for the purpose of storage. Prop root ,stilt root are produced not from the radicle assimilatory roots are aerial roots that are photosynthetic.

Explanation:hope this helps.

The yellow beams in the model represent equal amounts of radiation coming from the Sun. Based on the information shown in the model, which two statements are true?

Answers

Answer:

B. All parts of the Earth's surface get the sunlight atbthe assume angle and of the same intensity

C. The regions near the poles get the most-intense and most-direct sunlight

Note: Then model and options are found innthe attachment below.

Explanation:

Latitude is the distance north or south of the Equator. It’s measured in degrees, from 0° to 90°. The amount of sunlight received and hence, the temperature of a place varies with latitude. The higher the latitude of a place or region, the lower the temperature of that region or place will be.

The elliptical shape of the earth contributes to how the heat from the Sun is received by a place. At the Equator, the Sun’s rays are most direct and intense, hence, the temperature of regions around the equator is highest.

At higher latitudes which have more curved surfaces, the Sun’s rays are less direct. Thus, the temperature of a place decreases with increase in latitude due to the less-direct heating by the Sun.

At the poles, the Sun’s rays are least-direct and least-intense. Temperature is lowest at the poles. That is why polar regions are covered with ice.

From the model and the options given, options A and D are correct while options B and C are false.

if perimeter of a square is 24cm find its area please give me easy formula​

Answers

Answer:

4l = 24

so l=6

now

l*l =6*6

= 36 square cm

Answer:

36cm²

Explanation:

Perimeter of a square = 4x (sum of all 4 sides)

Perimeter = 24 cm (given)

[tex]\implies [/tex]4x = 24

x = 24/4 = 6 cm

Now, area of a square = (side)²

Area = (6)²

= 36 cm²

WILL GIVE BRAINLIST!!! How do floods droughts and fires change the characteristics of an ecosystem?

Answers

Answer:

heat waves have reached record intensity in some regions . by daily precipitation characteristics alone; the relevant mechanisms are more Forest management and fire suppression practices can also alter this and alter the carbon cycle if ecosystems change from higher to lower carbon

Explanation:

What is the body’s central command organ

Answers

Answer:

. The brain is the command center for your body

Explanation:

Unlike other organelles, ribosomes are not surrounded by a

Answers

Answer:

1. Membrane

Explanation:

Answer:

a membrane

Explanation:

PLEASE HELP ASAP
Fungi live off of dead matter. Often, when you see a pile of dead leaves in a wetter climate, there will be many fungi there feasting on those leaves. Fungi recycle materials by eating them, and then, in turn, being eaten by other organisms. What title best describes a fungus?

producer

consumer

decomposer
?

Answers

Answer:

Decomposer.

Explanation:

The answer is decomposer because decomposers often eat dead things which make the dead things decompose.

Answer:

decomposer, fungi help clean up but also are a food for other animals

explain how thyroxine production is an example of homeostasis​

Answers

Explanation:

The production and release of thyroid hormones, thyroxine and triiodothyronine, is controlled by a feedback loop system that involves the hypothalamus in the brain and the pituitary and thyroid glands. ... This system allows the body to maintain a constant level of thyroid hormones in the body.

Plz follow me and Mark me as brainlest please

Explain the process of when a wave occurs.
Science PLZ HELP

Answers

Answer:

energy passing through the water, causing it to move in a circular motion. When a wave encounters a surface object, the object appears to lurch forward and upward with the wave, but then falls down and back in an orbital rotation as the wave continues by, ending up in the same position as before the wave came by.

Explanation:

Answer:

Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. The gravitational pull of the sun and moon on the earth also causes waves.

Which statement is true regarding type 1 diabetes?


1. Type 1 diabetics are considered insulin-dependent diabetics.

2. Type I diabetics acquire the condition later in life.

3. Obesity is a cause of Type 1 diabetes.

4. Type I diabetics can control their diabetes with diet and exercise.

Answers

Answer:

option 1- type 1 are considered insulin dependent

Explanation:

the other options all describe type 2

Answer:

1. Type 1 diabetics are considered insulin-dependent diabetics.

Explanation:

Type 2 diabetes acquires later in life not Type 1.

Type 1 diabetes is thought to be caused by an autoimmune reaction (the body attacks itself by mistake) that destroys the cells in the pancreas that make insulin, called beta cells. This process can go on for months or years before any symptoms appear

Type 2 control with diet and exersize while as Type 1 is controlled by insulin.

7. Cells will generally divide when? *

Answers

Answer:

cells will generally divide when reproduction occurs

hope this helps you ☺️☺️

The difference in charge across the membrane is called the . It is measured in . At resting potential, the charge of the outside of the neuron is and the inside is . Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) . This causes the charge outside the cell to temporarily become and the inside to temporarily become . When the action potential arrives at the axon terminal it reaches a junction called the Because the nerve impulse cannot cross the synaptic cleft,

Answers

Answer:

1. The difference in charge across the membrane is called the - membrane potential.

2. It is measured in mV

3. At resting potential, the charge of the outside of the neuron is 70 mV less negative than the inside

4. Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) Action Potential

5. This causes the charge outside the cell to temporarily become positive and the inside to temporarily become negative

6. When the action potential arrives at the axon terminal it reaches a junction called the Chemical Synapse

Explanation:

1. The difference in charge across the membrane is called the - membrane potential.

2. It is measured in mV

3. At resting potential, the charge of the outside of the neuron is 70 mV less negative than the inside

4. Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) Action Potential

5. This causes the charge outside the cell to temporarily become positive and the inside to temporarily become negative

6. When the action potential arrives at the axon terminal it reaches a junction called the Chemical Synapse

Answer:

1. The difference in charge across the membrane is called the - membrane potential.

2. It is measured in mV.

3. At resting potential, the charge of the outside of the neuron is 70 mV less negative than the inside.

4. Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) Action Potential.

5. This causes the charge outside the cell to temporarily become positive and the inside to temporarily become negative.

6. When the action potential arrives at the axon terminal it reaches a junction called the Chemical Synapse.

All the animals can be classified into three groups ____,_____,______on the basis of

their food habits.​

Answers

Answer:

Herbivores, Carnivores, Omnivores

plz mark me as brainliest.

All the animals can be classified into three groups omnivorous, carnivorous and herbivores on the basis of their food habits.

PLEASE HELP!! DUE SOON!!!
The Sun is classified as which type of star?
A. black hole
B. main sequence
C. neutron
D. supergiant

Answers

Answer:

Our Sun is categorized as a G-type yellow-dwarf main sequence star.

Compare the results of the Unknown Explain the identity of the Unknown using your experimental results in the exercises to help explain and support your answer.

Answers

Question

The question is incomplete. The complete question is as follows:

Review the Data Tables in Exercises 1 and 2. Compare the results of the Unknown for all  tests to the results for the various known samples to determine the identity of the  Unknown. Explain the identity of the Unknown using your experiment results in the  exercises to help explain and support your answer.

Answer:

According to the results, the unknown is a protein.

Explanation:

According to the results, the unknown is a protein, not a carbohydrate or lipid. When Biuret's reagent test is performed, it tested positive while the tests for sugar, starch, and lipid were negative proving that the unknown substance is the protien.

What do red blood cells carry?

Answers

Answer:

red blood cell carry oxygen

hope it helps.

Answer:

Red blood cells carries oxygen .

hope it is helpful to you

What organism did Mendel work with?

Answers

Answer:

Mendel carried out his key experiments using the garden pea, Pisum sativum, as a model system

Explanation:

The interactions between the red blood cell and important molecules, cells, and organs

Answers

= Includes white blood cells fighting off bacteria and other disease causing organisms and red blood cells carrying dissolved gasses, also red blood cells carry oxygen from your lungs in a protein called hemoglobin through the blood .

Answer:

Other answer is correct i didn't pay attention in this class

Explanation:

Which protist is considered to be the most complex and specialized?
A. Amoeba
B. Paramecium
C. Volvox
D. Euglena

Answers

Answer:

The answer is B. Paramecium.

Explanation:

the law of reflection states that light will always reflect

Answers

Answer:

The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. ... The reflected ray is always in the plane defined by the incident ray and the normal to the surface.

Explanation:

The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. The reflected ray is always in the plane defined by the incident ray and the normal to the surface. The law of reflection can be used to understand the images produced by plane and curved mirrors.

What type of physical evidence is acquired through the senses

help quick

Answers

Answer:

Empirical evidence is information acquired by observation or experimentation.

Explanation:

I hope it will help you

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