what is the purpose of smears simple and negative staining? one purpose for all the 3 staining

In a population of damselfish, the gene responsible for color pattern produces three distinct phenotypes: solid blue (AA), blue and yellow striped (Aa), and solid yellow (aa). The (Aa) damselfish are more conspicuous and so are predated at a higher rate (SAa =0.6). suppose you counted 4400 solid blue,v2400 blue and yellow striped, and 3200 solid yellow damselfish on a particular coral reef

(a) calculate the initial frequencies of the 3 genotypes and the 2 alleles.

(b) what would the allele frequency for the recessive allele (a) be among the breeding adults after one generation (what is q₁)?

(c) if you counted 1000 baby damselfish from among the offspring of the adults in part (b), assuming they mate randomly, how many of them would be blue and yellow striped?

(d) if this form of selection continued for many generations, how would what your great-grandchildren observe in the future compare with what you might observe today?

Short Answer: Please answer in full sentences with proper grammar. Short Paragraph format. 2pts each. Total of 32pts.

1. Discuss mate selection (direct & indirect). What is reproductive potential? What is reproductive variance? How do they influence/relate to mate selection/sexual competition?

16. (short answer) Hypothesize what would happen if thyroid cells could not respond to TSH. Suppose a doctor did a blood draw. Would the levels of TSH be high or low? Thyroid hormone? TRH?

Please write an essay for the following information for the Cell fusion technique:

Purpose - Brief description (one to two sentences) of the purpose of this method (ie. what is the general purpose for this technique? When would it be used?)

Background – This section will include a description of the concepts and theories that are needed to understand this technique.

Method description – this section will include an overview of the steps involved in carrying out the technique. This does not need to be as detailed as you would expect to find in a publication, but rather should include more of an outline of the experimental flow.

Advantages/limitations of the technique – This section should include at least 1 advantage and 1 limitation of the technique compared to other techniques.

Please write an essay for the following information for the Freeze fracture technique (may use online sources):

Purpose - Brief description (one to two sentences) of the purpose of this method (ie. what is the general purpose for this technique? When would it be used?)

Background – This section will include a description of the concepts and theories that are needed to understand this technique.

Method description – this section will include an overview of the steps involved in carrying out the technique. This does not need to be as detailed as you would expect to find in a publication, but rather should include more of an outline of the experimental flow.

Advantages/limitations of the technique – This section should include at least 1 advantage and 1 limitation of the technique compared to other techniques.

Glutamine Synthetase Deficiency, is an extremely rare disorder. Describe the issue that would occur in the amino acid pathways if a patient had the disorder, also why might it be under reported?

What do you think will happen within our culture and our health care system as genetic screening becomes more accurate and more common?

200 words at least

which of the following is a net sugar source for a deciduous angiosperm tree?

A. new leaves in early spring

B. fruits in summer

C. roots in early spring

D. roots in early autumn

Which type of mutant would be most likely to produce a bushier phenotype?

A. strigolactone underproducer
B. auxin overproducer
C. cytokinin underproducer
D. strigolactone overproducer
E. gibberellin overproducer

Which of the following observations provides the strongest evidence against root pressure being the principal mechanism of water transport in the xylem?

A) Not all soils have high concentrations of ions.
B) Root pressure requires movement of water into the xylem from surrounding cells in the roots.
C) Over long distances, the force of root pressure is not enough to overcome the force of gravity.
D) There is no water potential gradient between roots and shoots.

During the night time, due to lack of transpiration, the water potential within the vascular cylinder ____________.

A. lowers due to accumulation of minerals

B. increases due to accumulation of minerals

C. lowers due to loss of minerals

D. increases due to loss of minerals

Mammalian eyes sense light because the photoreceptor cells have molecules called opsins, which change structure when exposed to light. Which of the following plant molecules would be analogous to mammalian opsins in their light-sensing ability?

A. auxin and phytochrome

B. auxin and Pfr

C. Pfr and phytochrome

D. cytokinins and phototropins

I need to know the reasons for the answers to these questions. Thank you in advance!

Relate methylation and homeotic control as methods of regulating gene expression in development

• the effects of the inhalation of smoke and E-cigarette vapor on gas exchange in the lungs;
• specific diseases associated with smoking, both pulmonary and cardiovascular; and
• lastly, based on what you know about E-cigarettes from the reading and your own research, defend or oppose the regulation of vaping products as traditional cigarettes.

Why do Staphylococcus and Micrococcus fail to grow on the MAC plate? Explain your answer based on cell wall composition and the composition of the media