Give the correct term for the following

a-A developing embryo

b-Second phase of seed development after cell division.

c-The mature ovary wall that develops into a fruit wall.

d-The oil bodies on the outside of seeds

e-The pathway of water between living cells via the plasmodesmata

f-Root system formed from a strongly developed primary root and its branches

g-. The central column of cells in the root cap.

h-Negatively gravitropic air roots

i-Large intercellular air spaces in aquatic and wetland plants

j-The central area of the stem or root that contains procambium derived tissues and includes the vascular tissue, pith occasionally and a pericycle

OUTLINE the differences in the envelope structures of Gram-positive and Gram-negative bacteria. You may use diagrams or a table.

Describe the behavior of chemotaxis in bacteria. Make sure to mention how the flagella contributes and how they can move toward good things and away from bad things.

DESCRIBE the Endosymbiotic Theory and OUTLINE the evidence to support

Identify and briefly explain two advantages and two disadvantages of individual-level epidemiologic studies over rodent bioassays in assessing the public health hazard of a chemical

An aminoacyl-tRNA exhibits which one of the following characteristics?

Concerning generation of ATP from glucose during glycolysis which of the following statements is not correct?

Insulin results in phosphorylation of acetyl-coA carboxylase, which stimulate fatty acid synthesis?

True

False

Which of the following statement(s) is or are correct?

Which of the following would be observed in a person who is resting after an overnight fast?

Q1. Cell survival curves

Suppose you did an experiment to generate a cell survival curve.

a) Describe what steps you would take to do the experiment.

b) What is meant by plating efficiency?

c) In your experiment you irradiate cells using 6 MV photons on a linear accelerator. You collect the data shown in the table below. Plot cell survival as a function of dose and use the linear-quadratic model to fit the data.

d) Determine the alpha/beta ratio from the curve fit. Is this an early responding or late responding cell line?

Think of the meal you ate last night for dinner (if you do not eat dinners, think of what you had for lunch). Discuss in detail what happens to the food you ate in your mouth, stomach, small intestine, and large intestine. Was your dinner high in protein? Fats? Did it contain any carbohydrates? Fiber? Where were these nutrients digested chemically? Where do you think your dinner spent the most time and why? Be as specific (to your meal) as possible.

What is Bardeen’s relationship like with his twin brother when they are growing up?

How does their relationship change?

Why doesn’t Bardeen tell his brother his “secret” sooner?

How does Bardeen’s brother react when he finally tells his “secret”?

Do you think Bardeen is satisfied or disappointed with his brother’s reaction?

Explain. What do you think is the main message of the story?

LIVES; Not Close Enough for Comfort By David P. Bardeen I had wanted to tell Will I like boys since I was 12. As twins, we shared everything back then: clothes, gadgets, thoughts, secrets. Everything except this. So, when we met for lunch more than a year ago, I thought that finally coming out to him would close the distance that had grown between us. When we were kids, we created our own language, whispering to each other as our bewildered parents looked on. Now, at 28, we had never been further apart. I asked him about his recent trip. He asked me about work. Short questions. One-word answers. Then an awkward pause. Will was one of the last to know. Partly it was his fault. He is hard to pin down for brunch or a drink, and this was not the sort of conversation I wanted to have over the phone. I had been trying to tell him for more than a month, but he kept canceling at the last minute -- a friend was in town, he'd met a girl. But part of me was relieved. This was the talk I had feared the most. Coming out is, in an unforgiving sense, an admission of fraud. Fraud against yourself primarily, but also fraud against your family and friends. So, once I resolved to tell my secret, I confessed to my most recent ''victims'' first. I told my friends from law school -- those I had met just a few years earlier and deceived the least -- then I worked back through college to the handful of high-school friends I keep in touch with. Keeping my sexuality from my parents had always seemed permissible, so our sit-down chat did not stress me out as much as it might have. We all mislead our parents. ''I'm too sick for school today.'' ''No, I wasn't drinking.'' ''Yes, Mom, I'm fine. Don't worry about me.'' That deception is understood and, in some sense, expected. But twins expect complete transparency, however romantic the notion. Although our lives unfolded along parallel tracks -- we went to college together, both moved to New York and had many of the same friends -- Will and I quietly drifted apart. When he moved abroad for a year, we lost touch almost entirely. Our mother and father didn't think this was strange, because like many parents of twins, they wanted us to follow divergent paths. But friends were baffled when we began to rely on third parties for updates on each other's lives. ''How's Will?'' someone would ask. ''You tell me,'' I would respond. One mutual friend, sick of playing the intermediary, once sent me an e-mail message with a carbon copy to Will. ''Dave, meet Will, your twin,'' it said. ''Will, let me introduce you to Dave.'' Now, here we were, at lunch, just the two of us. ''There's something I've been meaning to tell you,'' I said. ''i like boys.'' I looked at him closely, at the edges of his mouth, the wrinkles around his eyes, for some hint of what he was thinking. ''O.K.,'' he said evenly. ''I've been meaning to tell you for a while,'' I said. ''Uh-huh.'' He asked me a few questions but seemed slightly uneasy, as if he wasn't sure he wanted to hear the answers. Do Mom and Dad know? Are you seeing anyone? How long have you known you like men? I hesitated. I've known since I was young, and to some degree, I thought Will had always known. How else to explain my adolescent melancholy, my withdrawal, the silence when the subject changed to girls, sex and who was hot. As a teenager I watched, as if from a distance, as my demeanor went from outspoken to sullen. I had assumed, in the self-centered way kids often do, that everyone noticed this change -- and that my brother had guessed the reason. To be fair, he asked me once in our 20's, after I had ended yet another brief relationship with a woman. ''Of course, I don't like boys,'' I told him, as if the notion were absurd. ''How long have you known?'' he asked again. ''About 15 years,'' I said. Will looked away. Food arrived. We ate and talked about other things. Mom, Dad, the mayor and the weather. We asked for the check and agreed to get together again soon. No big questions, no heart to heart. Just disclosure, explanation, follow-up, conclusion. But what could I expect? I had shut him out for so long that I suppose ultimately he gave up. Telling my brother, I like boys hadn't made us close, as I had naïvely hoped it would; instead it underscored just how much we had strayed apart. As we left the restaurant, I felt the urge to apologize, not for liking boys, of course, but for the years I'd kept him in the dark, for his being among the last to know. He hailed a cab. It stopped. He stepped inside; the door still open. ''I'm sorry,'' I said. He smiled. ''No, I think it's great.'' A nice gesture. Supportive. But I think he misunderstood. A year later, we are still only creeping toward the intimacy everyone expects us to have. Although we live three blocks away from each other, I can't say we see each other every week or even every two weeks. But with any luck, next year, I'll be the one updating our mutual friends on Will's life.

Hello, I need help with these questions please

Thank you

What is the difference between chromosome, chromatin, and chromatid? Please provide examples.

No one should ever consider aging a pathology. Aging is a normal part of the life cycle, and as such is a part of normal anatomy and physiology. However, aging can also bring an increase in certain pathological conditions as well as an increase in certain accident-related pathologies such as occurs with falls. It is important to have an understanding on what is normal and what is not, as well as to appreciate the fact that many elders live long, healthful lives with very few pathologies. Navigate to the National Council on Aging (NCOA).

Implement an "aging well" plan.

Include the following aspects in the assignment:

·         Explore the NCOA site

·         Access the five subtopics under Healthy Living

·         Create a plan using what you learn under each of the five subtopics for age healthfully

·         Your plan may have a heading for each, with bullet points sharing actions

1. What is the concentration of bleach that is used to disinfect your work area? Why is it      used to disinfect rather than to sterilize? When do you disinfect your work area? (3             points)
2. Can a pure culture be prepared directly from a mixed-broth or a mixed-slant culture?             Explain. (3 points)
3. As demonstrated in the video, why do you pass the mouth of the tube through the flame? What is the correct angle? (3 points)

5. How do you know that you have used aseptic technique correctly and have achieved a pure culture? (3 points)
6. What are some advantages and disadvantages of the serial dilution agar plate        technique? (3 points)

7. Describe the different cultural characteristics identified when you use agar plates,         agar slants, and nutrient broth. (3 points)

8. Distinguish between the following: (2 points)

1. Disinfectant (1 point)
2. Antiseptic (1 point)

9. What are some advantages of an agar plate over a slant tube? (3 points)
10. Describe how discrete colonies can appear from a mixed culture using the streak-           plate subculture process. (4 points)

Describe the Cardinal signs of inflammation and why/how do they each arise?

1. Which of the following is NOT true of Eukaryotes?

A. their nucleus contains the chromosomes

B. They contain membrane bound compartments

C. They contain ribosomes which are smaller than those of Prokaryotes

D. They contain many organelle in their cytoplasm

2. Which of the following Eukaryotic microbes generally do NOT contain a cell wall?

A. pungi, B. bacteria, C. algae, D. protozoa

3. In eukaryotes, this structure is studded with ribosomes. Proteins destined for the cell surface, or for outside of the cell, are produced here.

A. nucleosus, B. Smooth endoplasmic reticulum, C. rough endoplasmic reticulum, D. Golgi complex

4. In eukaryotes, this structure sorts proteins, modifies them, and repackages them.

A. Golgi complex, B. nucleous C.rough endoplasmic reticulum D. Smooth endoplasmic reticulum

5. Which of the following structures involved in motility (movement) do Eukaryotic process, but Prokaryotes do not?

A. pili , B. Flagella, C. Capsule, D. Cilia

Address the following (~200-300 words total):

1. How does a normal cell become a cancerous cell? What has to happen to it?
2. The video resources in the MasteringBio assignment focus on the telomerase enzyme role in cancer development. Explain the connection between telomerase activity and cancer.
3. The textbook essay focuses on a mutation that can happen in white blood cells that leads to blood cancer, leukemia. Explain the connection between BCR-ABL mutation and leukemia.
4. Propose a scenario where telomerase and BCR-ABL proteins are active in the same cell.