Analyze the nutritional components of the food you select and in your own words and answer the following questions using the USDA Nutrient Data Laboratory website.

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BIOLOGY HELP UNIT 1 DB

Our bodies break down food through the digestive process. Let’s investigate the chemical composition of the foods we eat. The USDA Nutrient Data Laboratory has posted a resource through which we can investigate the chemical composition of foods. Go to the USDA Lab Link at USDA Nutrient Data Laboratory. http://www.nal.usda.gov/fnic/foodcomp/search/Instructions:
1. Type in a keyword, then select a food group using the drop down arrow, then click submit.
2. This pulls up a menu with lots of choices.
3. Choose one food choice, then click submit
4. Next choose a portion size, then click submit
5. This will bring up the nutritional information.
Example:
* Keyword: Apple
* Select Food Group: Fruits and Fruit Juice
* Apples, raw, with skin.
* One medium
Assignment Details:
1. Analyze the nutritional components of the food you select and in your own words and answer the following questions using the USDA Nutrient Data Laboratory website. http://www.nal.usda.gov/fnic/foodcomp/search/
1. What was the food and portion size you chose?
2. Describe its composition in terms of carbohydrates, lipids, and proteins.
3. How many calories are in your food item? (Found in the Database as Energy – kcal)
4. List some of the most common vitamins and minerals in this food item.
5. Are there other important nutritional components of this food item? If so, list these. If not, say so.
2. State the highest category of biological molecule in your food – Carbohydrates, Lipids, or Proteins. Describe the structure of this type of molecule, and its primary function(s).
3. After identifying the nutritional components, discuss whether you recommend this food item as part of a healthy diet? Use references and guidelines such as the Food Pyramid and Recommended Daily Allowances to support your recommendations. Here is a link to the USDA interactive Food Pyramid resource, http://www.mypyramid.gov/ to help you analyze nutritional needs.
Each person in the class should choose a DIFFERENT food item. Read other students’posts to see what they have selected and choose a different food item.

Lab 1: Dependent and Independent Variables

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BIOLOGY LAB HELP PLEASE

i have a LAB THAT IM STRUGGLING WITH CAN YOU PLEASE HELP ME

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Name:
Lab 1: Dependent and Independent Variables (39 points)
Lab Results
Table 1: Average Yield for each seed variety at no, low, and high infestation levels (8 points)
Seed Variety Level of ECB Infestation Pot 1
Yield Pot 2
Yield Pot 3
Yield Average
Yield BT 123
None
Low
High BT 456
None
Low
High Golden
None
Low
High Super Harvest
None
Low
High
Table 2: % Reduction in yield for each seed variety at high levels of infestation (4 points)
(transfer data on average yield with no infestation and high infestation from Table 1 to Table 2)
% reduction = (ave. with no – aver. with high)/ave. with no * 100
Seed Variety Avg. Yield with
No Infestation Avg. Yield with High Infestation % Reduction
In Yield BT 123
BT 456
Golden
Super Harvest
Laboratory Analysis Questions
ECB refers to: (1 pt)
A genetically engineered plant that is resistant to insect pests
Edible corn byproducts
An insect pest that reduces corn yield
European corn borer
c and d
How many days are required for a corn seed to become a mature plant with maximum weight kernels ready to be harvested? (1 pt)
about 23
about 65
about 140
about 180
“BT Corn” refers to corn that: (1 pt)
Has been infested with insect pests
Has been infected with bacteria
Is resistant to ECB
Is not affected by pesticides
BT is: (1 pt)
A stomach poison produced by bacteria
A genetically engineered corn product
A bacterium carried by the European corn borer
A bacterium that has a gene for producing Cry proteins
Creation of BT corn requires genetic material from all of the following except: (1 pt)
European corn borer
Bacillus thuringiensis
a corn plant
all of the above contribute genetic material to the production of BT corn
For each seed variety, why did you need to collect data from 3 pots for each infestation level to obtain reliable data?

In this discussion board, you will look at the structure of the most basic unit of life, the living cell. And, you will investigate how the structures of cells are directly related to functions that are…

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BIOLOGY UNI T2 DB

Assignment Type: Discussion BoardDeliverable Length: 250 word Points Possible: 75Due Date: 1/16/2013 11:59:59 PM  CT
The Discussion Board (DB) is part of the core of online learning. Classroom discussion in an online environment requires the active participation of students and the instructor to create robust interaction and dialogue. Every student is expected to create an original response to the open-ended DB question as well as engage in dialogue by responding to posts created by others throughout the week.

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Assignment Type: Discussion BoardDeliverable Length: 250 word Points Possible: 75Due Date: 1/16/2013 11:59:59 PM  CT
The Discussion Board (DB) is part of the core of online learning. Classroom discussion in an online environment requires the active participation of students and the instructor to create robust interaction and dialogue. Every student is expected to create an original response to the open-ended DB question as well as engage in dialogue by responding to posts created by others throughout the week. At the end of each unit, DB participation will be assessed based on both level of engagement and the quality of the contribution to the discussion.
At a minimum, each student will be expected to post an original and thoughtful response to the DB question and contribute to the weekly dialogue by responding to at least two other posts from students. The first contribution must be posted before midnight (Central Time) on Wednesday of each week. Two additional responses are required after Wednesday of each week. Students are highly encouraged to engage on the Discussion Board early and often, as that is the primary way the university tracks class attendance and participation.
The purpose of the Discussion Board is to allow students to learn through sharing ideas and experiences as they relate to course content and the DB question. Because it is not possible to engage in two-way dialogue after a conversation has ended, no posts to the DB will be accepted after the end of each unit.
Background:
When you look at the world around us, you can see many examples that demonstrate how an object’s or a system’s structure relates to its function. The structure of a highway system, for example, can affect traffic flow. You can, no doubt, think of many other examples.
In this discussion board, you will look at the structure of the most basic unit of life, the living cell. And, you will investigate how the structures of cells are directly related to functions that are…

The length of the mRNA molecule generated from DNA during transcription. The length of the same mRNA molecule during translation [in eukaryotes].

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BIOLOGY GENETICS

1). What is the name of the man on the front page of this exam wishing you good luck?
a) James Watson b) Francis Crick c) Alfred Stutervant d) Thomas H.

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1). What is the name of the man on the front page of this exam wishing you good luck?
a) James Watson b) Francis Crick c) Alfred Stutervant d) Thomas H. Morgan e) Charles Darwin
2) What was his major contribution to the field of genetics?
a) theory of evolution by natural selection
b) constructing genetic maps of chromosomes to understand gene linkage
c) understanding the role of chromosomes in heredityd) alpha helix structure of DNA
e) genes are the unit of inheritance
3) Name that stage: using the picture to the right, what stage is this cell in?
a) prophase I d) metaphase II of meiosis
b) metaphase of mitosis e) anaphase of mitosis
c) anaphase I of meiosis
4) In the stage previous to the one shown, chromosomes are split at the centromere to be pulled apart to opposite poles.
a) True b) False
5) In the figure to the right, what is the chromosome number?
a) haploid b) 6n c) 12n d) diploid e) b and d
6) In the same cell, what will the chromosomal number in each daughter cell one this one has undergone cytokinesis?
a) haploid b) 6n c) 12n d) a and b e) none of these
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The following can be compared in a quantitative sense. Use the choices below to describe the two statements.
a) the first is greater than the second
b) the second is greater than the first
c) the two are essentially equal
7) The number of phenotypes possible in the human ABO blood system. The number of genotypes possible in the human ABO blood system.
8) The length of the mRNA molecule generated from DNA during transcription. The length of the same mRNA molecule during translation [in eukaryotes].
9) In pea plants, spherical seeds (S) are dominant to dented seeds (s). In a genetic cross of two plants that are heterozygous for the seed shape trait, compare the following statements. The fraction of offspring with dented seeds. The fraction of…