4,064 Answered Questions for the topic biology

Biology

04/20/20

Biology Help Needed.
For an haploid n = 3 cell, compare the end result if a single nondisjunction event happens in anaphase I withnondisjunction that occurs in anaphase II. Please show how to draw what is happening,... more
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Biology Science

04/19/20

What's the process used to form the covalent peptide bonds that join amino acids into a polypeptide?
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04/19/20

What is the volume of hydrogen at a pressure of 1.06 atm if 200 cm3 of hydrogen is collected at a pressure of 1.00 atm?
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04/18/20

From the volume, temperature, and pressure calculate the number of moles and the mass in grams for the gas listed below.
5.00 L SO2 at 21°C and 0.95 atm
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04/18/20

Determine the volume occupied by 0.582 moles of a gas at 15°C if the pressure is 622 mmHg.
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04/18/20

What is the volume of a gas at -20°C if the gas occupied 50.0 cm3 at a temperature of 0°C?
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04/18/20

If a sample of a gas occupies 6.8 L at 327°C, what will be its volume at 27°C if the pressure does not change?
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04/18/20

A gas sample occupies 200 mL at 760 mmHg. What volume does the gas occupy at 400 mmHg?
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04/18/20

What is the volume of hydrogen at a pressure of 1.06 atm if 200 cm3 of hydrogen is collected at a pressure of 1.00 atm?
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Biology

04/17/20

Why is disease a density-dependent limiting factor on a population but a natural disaster such as a flood is a density-independent limiting factor on a population?
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Biology

04/17/20

Which of the following best describes the product of RNA translation?
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04/15/20

Membranes are important to the role of cellular respiration in an animal. Identify the role of membranes in 1) Glycolysis 2) Kreb’s cycle and 3) Electron transport chain.
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04/15/20

How can you determine the sequence of the new DNA strand being made during replication? Are the 2 strands of the original DNA molecule replicated in the same way, or different? Why?
I have a couple of questions about DNA replication and sequencing. I am a little confused so if you explain, that would be great! Thanks!
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Biology

04/14/20

A gene for dimples disappears from a population. Explain how this could have occurred due to genetic drift. Include the definitions of gene flow and genetic drift in your answer.
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Biology

04/14/20

What evolutionary mechanisms have the ability to increase or decrease genetic diversity in a population? List and define three.
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04/14/20

Nanopatterned physical  surface  coating strategy on Ti-based
Plan a nanopatterned physical  surface  coating strategy on Ti-based alloy implant to have the coating thickness is below than 1 micrometer.ii) Explain the working principle of surface modification... more
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04/14/20

Artificial heart valve
The ideal artificial heart valve must have certain clinical and engineering features to perform efficiently. i) Please purpose suitable type of biomaterial that can be used to manufacture... more
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04/14/20

Types ofBiomaterial

i) What is the differences between bioglass and ceramics, explain it by remembering lecture discussions. ii) Which generation of biomaterial is bioglass and explain the reason?iii) What type of... more
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Biology Math Microbiology

04/14/20

Calculate the average molar concentration of a protein in a human cell
Calculate the average molar concentration of a gene product (i.e. a protein) in a proliferating human cell such as a fibroblast. Assume the cell have ~5000 gene products and the average protein... more
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Biology

04/14/20

need help to explain please
A pedigree uses specific symbols to indicate genetic information about related individuals. Consider the figure, which depicts a pedigree with three generations of a family affected by a rare... more
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04/13/20

cell proliferation and cell differentiation
Explain the relationship between cell proliferation and cell differentiation. What is dedifferentiation? Please give an example ofdedifferentiation issue in cell culture... more
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Biology

04/13/20

Chromosomal Rearrangment
Recessive genes a, b, c, d, e, and f are closely linked on a chromosome, but their order in unknown. Three deletions in the regions are examined. One deletion phenotypically uncovers a, b, and c;... more
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Biology

04/12/20

Allele Interaction
Two alleles of gene C control hair color in horses: C. and C.. Horses homozygous for allele C. are red, heterozygotes are yellow, and C. homozygotes are cream. What type of allele interaction is... more
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Biology

04/12/20

FISH analysis is likely to detect which type of change in DNA?
(a) translocations(b) deletions(c) frameshift point mutations(d) a and b
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Biology

04/12/20

An adult woman has the 14:21 Robertsonian translocation. What is the probability that she will give birth to a child with Down syndrome?
(a) 66%(b) 25%(c) 75%(d) 33%
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