127 Answered Questions for the topic Biology Tutor

Biology Tutor Biology

12/18/17

It is an advantage for two species to share the same niche
Biology it is a biopsy question that I need help on please help true or false
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Biology Tutor Biology

12/07/17

why is it useful in population genetics to consider the concept of a gene pool?
why is it useful in population genetics to consider the concept of a gene pool? a) evolution acts on a pool of individuals in a population b) evolution acts on the pooled allele frequencies in a... more
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Biology Tutor Biology

12/07/17

The chromosome count of a cell...
the chromosome count of a cell at the completion of anaphase I is 48. What is the chromosome count in a gamete belonging to the same organism?   Please explain?   a. 14 b. 24 c. 12 d. 48
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10/25/17

Among the traits that Mendel studied in peas, he determined that the t
Among the traits that Mendel studied in peas, he determined that the round allele for shape (W) was dominant to the allele for wrinkled (w) peas. Thus, Ww plants produce round peas. You have... more
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Biology Tutor Chemistry Lab

10/12/17

volume of PCR , is this right?
Reagent stock concentration             Required final concentration                Volume10X Buffer                                                       1X                                       5... more
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Biology Tutor Dna

10/10/17

template and coding DNA
If the template strand of DNA is 3’-xxx-5’, what are the first 4 amino acids of the protein?If the coding strand of DNA is 3’-xxx-5’, what are the first 4 amino acids of the... more
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Biology Tutor Biology Genetics

10/06/17

Punnett square for indpendent assorting
How would you demonstrate that two loci are independently assorting? Describe your experimental design and your specific predictions. Locus A has two possible alleles, A1 and A2, and Locus B has... more
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Biology Tutor Genetics Dna

10/06/17

Breeding Orchids
A horticulturalist breeds orchids, trying to obtain a plant with a unique combination of desirable traits. After many years, she finally succeeds. To produce more plants like this one, should she... more
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Biology Tutor Biology Genotypes

10/04/17

Genotype and phenotype question help?
If the gene A is one of the genes controlling leaf colour. A recessive mutant allele of that gene, a, is occasionally present which turns the leaves white due to inability to synthesize... more
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Biology Tutor Biology Genetics Genotypes

10/03/17

Biology genetics
In llamas, a shaggy coat (S) is dominant over a smooth coat (s). If two hybrid/heterozygous llamas are mated, what are the possible genotypes of their offspring? Select all that apply. [Hint: you... more
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Biology Tutor

09/27/17

Gradients and ion channels
Ions diffuse across membranes through specific ion channels down.. Please explain answer as to why that is the answer
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Biology Tutor

09/27/17

types of bonds
Why does water have a high specific heat? Please explain the answer.
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Biology Tutor

09/20/17

DNA question Bluescript
We loaded purified plasmid DNA into 4 individual lanes of an agarose gel. Using the diagram on the right, draw bands of appropriate size where you would expect to see them after electrophoresis.... more
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Biology Tutor

09/19/17

explain what would happen if a reactant molecule with a different shape to the enzyme came into contact with the enzymes active site?
9th grade biology
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Biology Tutor

09/12/17

The Central Dogma of Molecular Biology
The Central Dogma of Molecular Biology describes the flow of information in a cell. Briefly name and describe the two key processes that the cell performs in order to transmit and utilize genetic... more
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Biology Tutor

09/11/17

Mutant yeast
A mutant yeast strain is found with a mutation affecting a tRNATyr. The wild type normally produces a tRNA that recognizes the codon 5’-UAC-3’, and is charged with the amino acid Tyrosine (Tyr) –... more
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Biology Tutor

09/11/17

molecular strategy
Unfertilized eggs of several animal species contain many mRNAs that should not be translated until fertilization occurs. Describe a molecular strategy employed by the egg to ensure timely activity... more
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Biology Tutor

09/09/17

help me find the independent and the dependent, as well as cause
A study was done to find if different tir treads affects the breaking distance of a car.
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Biology Tutor

09/09/17

Chromosome question cell cycle
The same chromosome can look very different depending on when in the cell cycle it is observed. Why is that? How many DNA molecules does each chromosome contain at its most condensed? Use the... more
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Biology Tutor

09/08/17

I need to know how to set up the problem, a format.
Calculate the pH for a solution with [H+] = 1 x 10-4.   pH =_______
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Biology Tutor

09/08/17

A solution with a pH of 2.0 is how many times more acidic than than a solution with a pH of 4.0?
A solution with a pH of 2.0 is how many times more acidic than a solution with a pH of 4,0?
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Biology Tutor

09/08/17

ph balance with a [H+]
How do I calculate the pH for a solution with [H+] = 1 x 10-4.  pH = ______________
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Biology Tutor

09/08/17

How to calculate the pH for a solution with [H] positive = 1 x 10 to the negative 4 power. pH = ___
How do you calculate the pH for a solution with [H] positive = 1 x 10 to  the negative 4 power.  pH = ___________
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Biology Tutor

09/06/17

DNA question
Below is a theoretical section of DNA. Design two primers that are 10 base pairs (bp) long that will amplify this section of DNA in a PCR reaction (‘N’ refers to non-specific ‘nucleotide’). 3’–A C... more
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Biology Tutor

09/06/17

Assuming that you collected the DNA of 100 buccal cells, how many ng DNA did you collect?
Needed information: MW of 1bp = approx. 660 Dalton or 660 or 660g/mol; 1 Human haploid genome = 3 x 10^9 bp per cell
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