why does a third copy of chromosome 21 result in the complex pattern of developmental and physiological abnormalities associated this this syndrome. How does this extra copy - or dose - cause these defects/differences?

A Punnett is a means to determine the genetic inheritance of offspring if the genotypes of both parents are known. Using Punnett squares answer the questions about the following scenarios. In order to properly answer some of the questions more than 1 Punnett square might be needed. With every Punnett square provide a key for your alleles.

1. The condition of sickle cell anemia is recessive and only the homozygous recessive individuals are adversely affected. Interestingly, heterozygous individuals have increased resistance to Malaria which is caused by a Plasmodium parasite that infects red blood cells. A heterozygous individual has red blood cells that are minimally affected but are altered enough so that Plasmodium cannot infect the cells. This is one reason why this allele persists in the population – in the heterozygous state it gives the individual an advantage for survival in some environments.

Veronica, who has the sickle cell condition, and Mason who does not have the condition have a child. They are worried about the having a child with sickle cell anemia and malaria because they are moving to a part of Africa where the Plasmodium is common. Who in this family should be worried about sickle cell anemia and contracting malaria?

Explain the importance of global health to our own health. Describe the characteristics of the best global health interventions and provide examples of each. Describe key environmental health regulatory agencies at the international, national, state/provincial, and local levels. State the four principles that guide environmental policy development we discussed. Describe each in some detail.

Relate the disease processes that cause osteoporosis, osteomalacia, rickets, and osteosarcoma to what you have learned about the structure, composition, and growth of bone tissue.

Identify the symptoms and treatments for each of these diseases.

A female fruit fly with singed bristles was mated with a male from a true-breeding wild-type stock with long bristles. All of the F1 females had wild-type long bristles and all of the F1 males had singed bristles. If the F1 flies are intercrossed, the expected ratio of long to singed bristles in the F2 flies is

Multiple Choice

• 3:1 in both sexes.

• 3:1 in females, while all the males will have singed bristles.

• 1:1 in both sexes.

• 1:1 in females, while all the males will have singed bristles.

• 1:0 in both sexes (i.e., males and females will all have long bristles).

2. A trihybrid individual heterozygous for three corn seed traits is testcrossed.

a) Identify parental, SCO (single crossover) and DCO (double crossover) classes

b) Determine the gene order

c) Calculate the map distance for each gene interval

1.

Identify the adaptation(s) that were not used by plants to colonize land:

Select one:

a. muscles and cartilage attached to backbones

b. colorful flower petals, flavored nectar and pollen to attract insects

c. cell walls providing structural support for roots stems and leaves

d. cones, nuts and fruits for seed dispersion

2.

One of the most important consequences of the “oxygen revolution” for the emergence of multi-cellular life:

Select one:

a. formation of an ozone layer protecting against harmful UV radiation

b. formation of sediments to preserve fossils

c. mass extinctions of fish, trilobites and dinosaurs

d. inspired emerging eukaryotes to “fight the power”

3.

Kelp forests provide critical sources of food and habitat for a variety of marine invertebrates, zooplankton, bivalves and fish species. This makes kelp a ____________________species of their ecosystems. Sea otters, in turn, consume __________________ which feast on kelp. This makes sea otters a unique  ____________________ species, because they reduce the population of kelp consumers to a sustainable level, which prevents collapse of the entire ecosystem.

Select one:

a. cornerstone, sea urchins, keystone

b. sensitive, sea urchins, cornerstone

c. keystone, sharks, cornerstone

d. keystone, sharks, sensitive

Characterize the patients that tested positive fo r CRE isolates from 2010 to 2015 in the Unites States.

2. A serial dilution of patient serum is done: Tube #1 Tube #2 Tube #3 Tube #4 Tube #5 Tube #6

1:2 1:4 1:8 1:16 1:32 1:64

One milliliter of RBCs is added to each tube and the following is noted:

Tube #1 No agglutination

Tube #2 No agglutination

Tube #3 Agglutination

Tube #4 Agglutination

Tube #5 Agglutination

Tube #6 Agglutination

a. What has happened in Tubes #1 and 2?

b. What is the antibody titer?

3. You suspect that an individual has been infected with the Nasty Virus, a highly contagious virus that has been reported in your city. Describe how you could use the Western blot procedure to confirm that this individual has been infected. (Please list the steps of the Western Blot procedure)

Can someone please explain how to calculate the average metabolic rate, standard deviation metabolic rate, mass specific metabolic rate, and Q10? I was given the initial O2 (mg/L), final O2 (mg/L), mass (g), and length (cm) of three fish at two different temperatures.

. What are some of the main nutritional concerns facing a vegetarian athlete? Do you think this is healthy way to eat for sport performance? Why or Why not?