4,064 Answered Questions for the topic biology

01/29/20

help with genetics problem
  A horse’s coat color is controlled by many different gene pairs. A dominant B will give the horse a black color, and a b will give the horse a chestnut color. However, when a dominant W is... more
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01/29/20

Biology Question
How many grams of NaCl would you dissolve in water to make a 500 mM NaCl solution with 1-liter final volume ?
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01/29/20

Biology Question
How many grams of NaCl (molecular weight = 58.5g mole^ -1) would you dissolve in water to make a 1M NaCl solution with 1-liter final volume ?
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01/29/20

Biology Question
How many grams of sodium chloride would you dissolve in 500ml water (final 500ml) to make a 0.9% (w/v) saline solution ?
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01/29/20

Biology Question
How much milliliters of absolute ethanol (100% ethanol) would you mix with how much milliliter of pure water to make 100ml of 70% (v/v) ethanol solution ?
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Biology

01/24/20

What happens next after the ribosome reaches the start codon?
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01/24/20

Can genes related to your sleep change?

Does shifting your sleep change Genes like PER3, DEC2 and other sleep related genes, for instance there have been studies that show that humans are able to shift their sleep to a later time like... more
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Biology Science Genetics

01/24/20

A type A woman is the daughter of a type O father and a type A mother. If she has children with a type AB man, what is the probability of a type AB child?
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Biology

01/24/20

What would the blanks be in this sentence for my AP bio class packet?
Once again, in an inducible operon a _____ binds to the _____ preventing ____ ________ from binding, blocking ______
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Biology Science Homework

01/22/20

BIOLOGY NEED HELP ASAP
If the offspring of two similar plants appears to look like the "parent" plants, then the plants have actually bred "true."  In your experimental design be sure that you are being precise in your... more
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Biology

01/19/20

biology this question is unavaliable

my question is biology related. this question is unavaliable and there is no access.
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01/18/20

Can someone help me please?
Question: Use a suitable diagram and explain the role of glutamate and AMPA/NMDA receptor interaction in the promotion of pyramidal cell excitability, accompanied by spine formation, in the... more
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01/18/20

Dosage Calculation Question for Healthcare Professionals!

1) A healthcare provider has ordered dobutamine 10 mcg/kg/min IV for your 68 YO patient who weighs 172 lb. The dobutamine is available as 1000 mg/250 mL. At what rate will you set the IV infusion... more
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Biology

01/17/20

AP Bio- bacterial transformation lab question
What is the method for screening only the bacteria that were transformed?
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Biology

01/17/20

Biology questions using the Hardy weinberg equilibrium I really need help with
Consider that the gene pool of a certain animal population contains just 2 alleles for the genes that controls hair color. If the frequency of the H allele is 0.45 what percent of the population... more
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Biology

01/16/20

Which of the following statements accurately describe sexual selection and inbreeding?
A. Sexual selection alters allele frequences, while inbreeding does not affect allele frequencies.B. Sexual selection invovles non-random selection of a mate, while inbreeding involves random mate... more
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Biology Genetics

01/16/20

Biology questions I really need help with
Consider that the gene pool of a certain animal population contains just 2 alleles for the genes that controls hair color. If the frequency of the H allele is 0.45 what percent of the population... more
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Biology Earth Science

01/16/20

what happens in a photic part of a body of water ?
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Biology

01/15/20

How do mutations lead to genetic variation?
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01/14/20

Pathophysiology Question for Healthcare Professionals!

John, a 45 year-old male walks into the clinic complaining of persistent angina that started at 1:00 AM in the morning. He is notably diaphoretic but is still ambulatory and alert. He is... more
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01/14/20

Genetics Question for TEAS/HESI/HESI A2 Preparation

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Biology

01/12/20

In humans melanin helps in colouration but in chameleons what help in their colour changes?
Colouration in humans and chameleons
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Biology

01/10/20

The greatest amount of sap collected from any one tree is _____ times as great as the least amount of sap collected from any one tree.
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01/10/20

Hydrogencarbonate

Sherbet lemons are sweets which consist of a flavoured sugar shell filled with sherbet. The sherbet contains sodium hydrogencarbonate, NaHCO3 and tartaric acid (2,3- dihydroxybutanedioic... more
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01/10/20

The simplest carboxylic acid is methanoic acid HCOOH. It occurs naturally in ants.
The simplest carboxylic acid is methanoic acid HCOOH. It occurs naturally in ants.When an ant bites, it injects a solution containing 50% by volume of methanoic acid. A typical ant may inject... more
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