Unattached earlobes (EE or Ee) are described in the textbook as dominant over attached earlobes (ee). A couple both have unattached earlobes. Both notice that one of their parents on both sides has attached earlobes (ee). Therefore, they correctly assume that they are carriers for attached earlobes (Ee). The couple proceeds to have four children. What is the most probable result

Answers

Answer 1
Answer:

Answer: 1 kid would be EE, 2 would Ee and the fourth would be ee.


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Why do many cancer patients undergoing chemotherapy lose their hair? A. The cancerous cells take up too much of the body's available energy, leaving none available for hair growth B. Most types of cancer start in the hair follicles C. Chemotherapy treatments block the synthesis of keratin, the primary protein component of hair D. Chemotherapy treatments disrupt meiosis E. Chemotherapy treatments stop cell division, and therefore have the most pronounced side effects on tissues that normally have the highest rates of cell division, such as hair

Which portion of a blastocyst will develop into the embryo? a. blastocoel
b. trophoblast
c. inner cell mass
d. blastomere
c. morula

Answers

Answer:

c. inner cell mass

Explanation:

The inner cell mass of the blastocyst forms the embryo while the outer layer, the trophoblast forms the placenta.

Energy for contraction of myocardial cells comes primarily from a. aerobic respiration in the mitochondria
b. anaerobic respiration in the cytosol
c. glycoludid in the cytosol
d. ATP that is stored while the heart is not contracting
e. creatinine phosphate

Answers

Answer:

The correct answer to the question: Energy for contraction of myocardial cells comes primarily from:___, would be, A: aerobic respiration in the mitochondria.

Explanation:

In order for the heart muscles (myocardium) to contract, there are a series of elements that need to be present. One of them, and most vital, is calcium, which will activate the connection of myosin and actin, the filaments in cardiomyocytes, the very units of muscular tissues in the heart. However, even if calcium were present, without ATP, the molecule of energy that will allow the process to happen, then contractions would not be possible. There simply would not be energy to allow the chemical reactions. The one organelle within the cell that is responsible to ensure there is ATP available, is the mitochondria. This production of ATP by mitochondria, happens through the process of aerobic respiration. This is why the answer is A.

Your dental office is participating in a large charity event that promises to provide free dental care to a large number of children. Unfortunately, there are only a limited number of instrument kits & handpieces available and sterilizing them will slow down the delivery of care. Which method of sterilization might help in moving instruments more quickly through processing?

Answers

Chemical sterilization is a fast method of sterilization. The best method to sterilize instruments quickly is the use of isopropyle alcohol.

Sterilization:

It is the method of killing microbes from the surface of instruments and utensils used in surgical procedure.

There are two type of sterilization.

  1. Physical sterilization
  2. Chemical sterilization

Physical Sterilization:

  • This is done by using heat and and pressure or irradiation methods.
  • It takes time sterilize the instrument.

Chemical sterilization:

  • This mainly include the use isopropyle alcohol to sterilize the surface and instrument.
  • It is a fast method of sterilization.

Therefore, the best method to sterilize instruments quickly is the use of isopropyle alcohol.

To know more about sterilization, refer to the link:

brainly.com/question/25235634

Answer:

Poop

Explanation:

Poop

A beer koozie is designed to keep a beer cold. The koozie is effective at blocking heat transfer from your warm hand into the cold beer and it also prevents condensation from forming on the side of the beer. Why does preventing condensation on a beer bottle keep the beer cool on a hot humid day?

Answers

Answer:

Water-vapour molecules give of their heat to convert into liquid water which is absorbed by the surface on which they condense.

Explanation:

  • Preventing condensation on the surface of a cold beer container will prevent the heat gain by the beer by absorbing the energy from the surrounding molecules of the water vapour present in the air in the form of humidity.
  • When water vapour of the atmosphere which is present in the form of humidity condenses on the cold surface it releases the latent heat of vapourization to the cold surface of the container which is directly in contact with the beer which further absorbs the heat form the container.
  • We know that the latent heat of vapourization of water is 2260\ kJ.kg^(-1) . This amount of heat is very high and can lead to gain of temperature considerably.

Answer:

Water-vapour molecules give of their heat to convert into liquid water which is absorbed by the surface on which they condense.

how many calories are required in the first trimester of pregnancy for a healthy young woman whose energy requirement is 2300 kcal/day before becoming pregnant?

Answers

The recommended daily calorie intake for pregnant women during the first trimester is an extra 300 to 400 calories per day.

This means that a healthy young woman who requires 2300 kcal/day before becoming pregnant would now need 2600-2700 kcal/day during her first trimester. It is important to note that these extra calories should come from nutrient-dense foods such as fruits, vegetables, whole grains, lean proteins, and low-fat dairy. As the pregnancy progresses, the calorie requirement may increase further.

It is important for pregnant women to be aware of the recommended daily calorie intake during each trimester and to make sure they are getting the right amount of nutrients. Eating a healthy and balanced diet is important for both mother and baby as it helps to ensure that the body is getting all the essential vitamins and minerals it needs.

know more about first trimester here

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A 19-year-old college sophomore comes to the emergency room because he has noticed a sudden onset of severe shortness of breath. It occurred while he was playing basketball. He is normally healthy and is a nonsmoker. He is an alert, thin, tall male in moderate discomfort secondary to respiratory distress. On physical examination of the lungs, the following is noted: hyperresonant to percussion over the left lung field; decreased to absent breath sounds on the left side and no adventitious sounds; decreased tactile fremitus on the left side. Based on the history and physical examination findings, what is the most likely diagnosis?

Answers

Answer:

Collapsed Lung (Pneumothorax)

Explanation:

"A pneumothorax is a collection of free air in the chest outside the lung that causes the lung to collapse.

[...]In some instances, the lung continues to leak air into the chest cavity and results in compression of the chest structures, including vessels that return blood to the heart. This is referred to as a tension pneumothorax and can be fatal if not treated immediately.

Examination of the chest with a stethoscope reveals decreased or absent breath sounds over the affected lung. The diagnosis is confirmed by chest X-ray."

Reference: George Schiffman. “Pneumothorax (Collapsed Lung): Symptoms, Causes & Treatment.” RxList, 2019