4,064 Answered Questions for the topic biology

03/23/21

Help with biology its urgent
Cystic fibrosis is a disease which is caused by a defective CFTR gene. This form of the gene is recessive. Let "N"=normal CFTR gene and "n" = abnormal CFTR gene. What is the genotype of individual... more
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03/23/21

ACID-BASE BALANCE 86 year old woman is admitted
ACID-BASE BALANCE86 year old woman is admitted to the hospital after she had a seizure while waiting for swallow evaluation as outpatient. Family reports that the patient has baseline... more
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03/22/21

Describe the three sources of energy to produce ATP for muscles and distinguish between aerobic and anaerobic processes.
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03/21/21

Explain how muscle use leads to hypertrophy or atrophy through changes in muscle fiber mass
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03/21/21

what would be the hypothesis? what would be  the control group? What would be the experimental variable? What would be the test group?
 If you were to test 1000 people on the effects of vitamin D on the density of their bones, what would be the hypothesis? what would be  the control group? What would be... more
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Biology Science Genetics

03/21/21

Human Genetics: Make a Family Tree
Make a family tree using data obtained in the survey of the woman. The proband (a woman) has one brother and two sisters, the eldest of whom has one son. The proband’s father had 3 sisters and one... more
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Biology

03/20/21

given that there are 5 different nucleic acid bases but 20 different amino acids, present a reason why proteins would have been the most likely candidate for genetic material.

given that there are 5 different nucleic acid bases but 20 different amino acids, present a reason why proteins would have been the most likely candidate for genetic material. As a hint, think... more
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03/19/21

Help with biology ITS URGENT
Pick answers from the choices below : Hemophilia A is a common disease in which the ability of the blood to clot is severely reduced, causing the sufferer to bleed severely from even a slight... more
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03/19/21

Help with BIOLOGY ITS URGENT
choose from the answers given :Cystic fibrosis is a disease which is caused by a defective CFTR gene. This form of the gene is recessive. Let "N"=normal CFTR gene and "n" = abnormal CFTR... more
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03/19/21

HELP WITH BIOLOGY QUESTIONS ITS URGENT
-What does it mean that individual "1" is shaded?-How are persons 1 and 8 related to each other?-Which two people are not genetically related to this family?-also The pedigree above represents the... more
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Biology

03/19/21

A 25g piece of copper has a density of about 9g/cm3 what would the density be of a 100g piece of copper
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03/18/21

Enthalpy diagram help
Frost forms on the windshield of a car on a cold winter morning. This frost disappears with no evidence that water forms. Draw an enthalpy diagram to illustrate the change. (If possible please... more
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Biology Bioengineering

03/17/21

TR calculation in MRI image.
At 3T, the T1 of gray matter is 1.6 s and the T1 of white matter is 1.1s. What is the TR to achieve the maximal gray matter/white matter contrast assuming gray matter and the white matter have the... more
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Biology Bioengineering

03/17/21

TR calculation in MRI image.
Conventionally, a 90-degree RF pulse is used during MRI to flip the magnetization to the transverse plane (x-y plane). However, sometimes instead of using a 90-degree pulse, a 180-degree RF pulse... more
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03/17/21

Why in diabetics the glucose start to appear in the urine- Glucosuria? What is the meaning of this statement: The renal threshold of glucose is 180-200 mg/dl.

Why in diabetics the glucose start to appear in the urine- Glucosuria? What is the meaning of this statement: The renal threshold of glucose is 180-200 mg/dl.
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03/17/21

Atmosphere questions
Describe what would cause the atmospheric pressure over an area to both increase and decrease.  What is the average “weight” of atmospheric pressure at sea level? What would happen to this... more
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Biology

03/16/21

In pea plants, tallness is dominant over shortness. If two heterozygous tall plants are crossed, what are the genotypes and phenotypes of the offspring?
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03/16/21

Enthalpy diagram
Frost forms on the windshield of a car on a cold winter morning. This frost disappears with no evidence that water forms. Draw an enthalpy diagram to illustrate the change.
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03/15/21

cell biology question
Propose how you would experimentally determine which X, Y, and Z yeast strains correspond with which UCC strains (names and genotypes given at the bottom end) if you had access to the... more
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03/15/21

Help with biology ITS URGENT PLEASE ??!!!!
Hemophilia is a sex linked trait. A woman who is a carrier for hemophilia marries a non-hemophilic man. -What is the chance that their male offspring will have the disease? -What is the chance that... more
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03/15/21

Help biology please ITS URGENT ???!!!
In rats, hair color is either gray (G), black (g), or white. The white color is produced due to an epistatic recessive allele of gene "a". In other words, in order for the black or gray color to... more
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03/15/21

cell biology course
Why does it take up to a full cell cycle to observe the effects of a temperature-sensitive mutation? This is regarding to yeast strains (cdc13-1) in the CDC13 gene have temperature sensitive... more
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03/14/21

cell biology course
Propose how you would experimentally determine which X, Y, and Z yeast strains correspond with which UCC strains (names and genotypes given at the bottom end) if you had access to the... more
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Biology Microbiology

03/14/21

cell biology course
Why does it take up to a full cell cycle to observe the effects of a temperature-sensitive mutation? This is regarding to yeast strains (cdc13-1) in the CDC13 gene have temperature sensitive... more
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Biology

03/14/21

Which amino acid is present in the lion's collagen and not in the elephant?
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