Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Adenine makes up 38% of the nucleotides in a sample of DNA from an organism. What percentage of the nucleotides in this sample will be thymine
What are bypass polymerases. How do they differ from the replicative polymerases. How do their special features facilitate their role in DNA repair.
hypercholesterlemia is a genetic diease that affects 1 out of 500 people worldwide. this is more that one genetic cause of the disease. Class 1 is described as an autosome dominant disease.
In the signal transduction lecture, we established that the BCR-ABL translocation creates a membrane bound receptor with constitutive kinase activity. What defect is associated with this oncogenic m
List two plants from an arid environment that have very small leaves (relative to plant size). Why would small leaves be beneficial to these plants. List a plant from an arid environment with no lea
That becomes the embryo and the new plant. Mitochondria and plastids that become chloroplasts are passed primarily from the female parent. What feature of the male or female gametophytes accounts fo
A wrongly folded form of protein in brain cells which can cause diseases such as chronic wasting disease in deer and elk is the result of A) bacteria B) viruses C) retroviruses D) prions
The recombination frequency between linked genes A and B is 40%; between B and C, 20%; between C and D, 10%; between C and A, 20%; between D and B, 10%. What is the sequence of the genes on the chr
An allotetraploid plant with 2n = 30 is backcrossed to one of its progenitor species that has an n = 8. A sterile progeny is produced. How many chromosomes will this sterile individual possess
Redraw the graph above, adding the KE that is used to recharge ADP + Pi and label the source of KE. Draw the energy graph that generates the KE for recharging ADP + Pi.
In a population of 500 individuals, 25% show the recessive phenotype. How many individuals would you expect to be homozygous dominant and heterozygous for this trait
In certain African countries, 4% of the newborn babies have sickle cell anemia, which is a recessive trait. Out of a random population of 1,000 newborn babies, how many would you expect for each of
Red wolves, which are rare, can mate with coyotes, which are not rare, and produce hybrids upon reaching sexual maturity. For the sake of argument, we will call the hybrids "wolyotes".
Explain how the poly(A) binding protein that binds to the poly(A) tails located in the 3' end of an mRNA can play a key role in an mRNA degradation pathway that proceeds from the 5' end of an mRNA i
Viruses are the ultimate scavenger-a necessary consequence of their small genomes. Wherever possible they make use of the cell's machinery to accomplish the steps involved in their own reproductions
a. a mutation that makes it impossible to deoxyribonucleotides to bind to the polymerase active site of DNA polymerase I b. a mutation in the coding sequence of DnaA in E. coli.
A species of tree has a very large genome consisting of 2.0x10^10 base pairs of DNA per diploid genome. Assume that each diploid cell contains 10 chromosomes of similar length.
In mapping a large plasmid you notice that EcoRI yields 3 bands, HindIII yields four bands and you can detect at least 6 bands on the gel for HindIII/EcoRI digestion.
A uniform ladder of length l an weight 100 N rests against a smooth vertical wall. The coefficient of static friction between the bottom of t ladder and the floor is 0.5.
For the design include the independent variable, the dependent variable, two possible controls, and 2 units of measurement the researcher should use and what the unit should be used to measure.
A mouse breeder has a strain of black mice that normally breed true and produce only black mice. Occasionally, however, a brown mouse or two has appeared in litters of some of the mice.
TFIID (In reference to TBP-associated factors, RNA pol II)is a complex of multiple proteins. It is considered a basal factor and is pretty much always going to be binding to initiate transcription i
What is the term for organisms that obtain energy and nutrients (building blocks for new molecules) by consuming organic material produced by other organisms
A patient looses 1 liter of blood and is waiting for a blood transfusion to arrive from the blood bank. Would it be better to administer 5% dextrose or 0.9% sodium chloride to the patient. Why.
There are three main types of coat protein associated with transport vesicles. What is the general purpose of these coat proteins? and where would each of the three types be found in the exocytotic