Determine the correct answer and explain why it is correct. Identify why the other options are not correct.
In: Biology
Mendelian Genetics
In tomato plants, the gene R has two alleles that control fruit color: the R allele is dominant and produces red tomatoes; the r allele is recessive, and when homozygous produces yellow tomatoes. Gene T controls plant height: the T allele is dominant and produces tall plants; the t allele is recessive and when homozygous produces dwarf plants. Genes R and T undergo independent assortment.
A. Parental tomato plants of genotype RRTT and rrtt are crossed. What genotype and phenotype do you expect in the F1 generation?
B. The F1 tomatoes are interbred.
Draw a Punnett Square to predict the genotypes and phenotypes that
will be seen in the F2 generation. Why is this only a
prediction?
C. What fraction of the F2 generation
is expected to be purebreeding?
D. Would you expect to see the same or different
results if the parental tomato plants had genotypes RRtt
and rrTT?
In: Biology
In: Biology
You may choose more than one answer. Which of the following is a mechanism of signal amplification in the cAMP-PKA pathway?
One signal molecule, epinephrine, activates lots of G-proteins.
When activated, adenylyl cyclase synthesizes many cAMP molecules.
cAMP-activated protein kinase A (PKA) can activate a number of target proteins by phosphorylation.
Proteins phosphorylated by PKA can further activate other proteins that make other products
In: Biology
Discussion Topic: Teaching Chemistry for
Understanding
Re-explain the following topic as if you were teaching it to others in a way they can understand it.
Explain Enzyme Structure and Function in a minimum of 200 words.
In: Biology
According to the CDC, more than half of all Americans consumed a supplement in 2012. Supplements are common in our culture, and many people think they need to consume a supplement to be healthy. Are supplements safe? In this forum, we will investigate vitamin and mineral supplements.
Using your favorite search engine, find a vitamin and mineral supplement and evaluate it. In your initial forum post, discuss the following:
In: Biology
Discuss a different good microorganism (e.g., a bacteria or fungus) and the benefits of this good microorganism. Be sure to properly cite your source for the microorganism you have chosen.
In: Biology
Record your estimate of neurocranial size relative to face size, and the presence or absence of postorbital construction of primates. (Use ratios)
Just use your best guess, was given no other information
In: Biology
In: Biology
1. Which is the earliest species of hominin to be found outside of Africa?
2. List a couple features of "archaic" Homo sapiens, as compared to Homo erectus
3. List a couple features of "archaic" Homo sapiens, as compared to modern humans.
4. What two groups of people made an appearance around 150,000 years ago
In: Biology
Because the interior of cell membranes is made of non-polar molecular regions, drugs with acid-base properties are better absorbed by cells when their most abundant form is not electrically charged (not an ion). In which region of the body will phenobarbital be absorbed at the lowest rate? (stomach, duodenum, jejunum).
it's not stomach
In: Biology
Many individuals have contributed in the discovery, understanding, and explanation of illness, injury, and death. For example: discovery of microscopic organisms, later called microbes, bacteria, and microorganisms; and advanced chemistry and histology which influenced advances in the study and control of diseases in epidemiology.
Of these discoveries, select 1 that is of interest to you and explain the implications that it has on human health.
Discuss the role that increasing life expectancy over the last century has on the types of diseases and conditions affecting mankind.
In: Biology
Disciplinary Measures
The appropriate disciplinary actions needed are not always apparent to those involved. That is one reason your textbook will be a wonderful reference book and a great start to your professional library. The manager who wants to be fair and just is one who gives great thought before administering discipline.
After completing the reading, respond to each of the scenarios below.
A. June Skinner is an assistant social worker at Valley Cancer Treatment Center, where you are Director of Social Work (DSW). Barb Simmons, Senior Social Worker, was not back from lunch and so June was given a phone call pertaining to one of Barb’s patients. Being inexperienced, June unintentionally shared information about a patient, Debbie Fox, over the phone with someone who was not authorized to be given medical information about Ms. Fox. That person was the patient’s ex-husband. He told June that he was Debbie’s father (who was on the list of people who could get information about Ms. Fox). Now the ex-husband is going to use the information against the patient in a child custody hearing. You, as DSW must deal with this situation and decide on the proper course of action. Describe the conflict situation using theories and key terms from your reading. In your response, also provide a course of action and justification for doing so.
B. You are the Food Services Director of St. Regis Hospital with a staff of 135 employees. The Senior Staff Dietician, Joe Smith, was dismissed on charges of embezzlement. The problem is, Mr. Smith had been with St. Regis for over 30 years, and was well loved by the food services staff. Since his departure, morale of the department has sharply declined. Explain your plan for using leadership skills to raise department morale and foster teamwork.
In: Biology
In: Biology