Sexual selection on traits involved in mate choice can lead to complex patterns of genetic variation in populations. The African Great Lakes contain a stunning diversity of cichlid fish species, which have recently evolved due to a combination of ecological adaption and sexual selection. In one recently evolved species, we observe the following pattern: An autosomal (not sex linked) locus “X” involved in pigmentation has different effects in male fish than female fish. There are two alleles in this system. In males, “x” acts recessively to produce bright red gill markings, while in females, the same allele acts dominantly to produce a dull striped pattern. A survey of male fish reveal that 56.25% have bright red gill markings.

A.)If we assume the population is in H-W equilibrium, what percentage of the female fish do we expect to have the dull striped pattern?

B.) In the scenario above, the phenotypic effect of alleles at locus X is dependent on the allelic state of the sex determining locus in these fish. What is the term for this kind of genetic interaction?

parts of microscope

What are liposomes, what are they composed of, & how are they possible precursor to plasma membranes and/or the first protocells?

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Courses Name: Ethics and Regulations in Heal

***Please complete my answer to be 500 words ..

I need new and unique answers, please. (Use your own words, don't copy and paste)

Question: 1: In certain cases it's legally and ethically appropriate for health professionals to proceed with a treatment without consent or proceed with a treatment that is against the patient decision, give your opinion in detail and examples.

Question: 2: What is capacity and when does an adult lack capacity

***Please complete my answer to be 500 words ..

I need new and unique answers, please. (Use your own words, don't copy and paste)

-> In some cases, it is legally and ethically appropriate for health professionals to proceed with treatment without consent or proceed with a treatment that is against the patient's decision.

As based on my opinion it is absolutely acceptable in some cases, as we know in some cases there have some ethical issues in India working with human cells (like cloning or gene modification etc).

But in some cases like for example, a patient who has a critical fever for some days and is under treatment in a hospital, accidentally he has positive in corona virus because of symptoms are relatively the same, that treatment will also proceed against the patient's decision.

-> Capacity means the ability to use and understand information to make a decision and communicate any decision made. A person lacks capacity if their mind is impaired or disturbed in some ways, which means they are unable to make a decision at that time.

a-f please and thank you!

a. What happens to the hippocampus of aged organisms, that impacts glucocorticoid levels?

b. Explain what is implicit memory and what is explicit memory.

c. Why do "mild to moderate short-term stressors enhance memory"?

d. Explain how and what type of memory is most affected by prolonged severe stress.

e. Discusses 5 ways that stress damages the hippocampus in lab animals. List and describe each of these 5 ways.

f. What is the conclusion regarding the current state of knowledge regarding stress and the human hippocampus.

3) In humans, hemophilia (a disease that affects the blood clotting process) is x-linked. A young man, John,
has hemophilia but his parents do not.
a) What are the genotypes of John and his parents?
b) If John’s parents have additional children, what are the probabilities that John’s future sisters and
brothers will not have hemophilia?
c) Of John’s 4 grandparents, only his father’s father has hemophilia. What are the possible genotypes
of the 4 grandparents? From which of the grandparents could John have inherited hemophilia?

Discuss how defects in cell to cell communication may lead to human diseases. Be sure to include citations from the scientific literature to support your posts.

What are some ways we can shift personal health from something that is internal (i.e. medical/pharmaceutical approach) to an external approach (i.e. air quality, soil)?

Name 3 main steps of cellular eespiration and 2 main of photosynthesis. where in the eukaryotic cell they occur? how about the prokaryotic cell?

pleasw make table if needed.

Describe soil and soil microbe contribution to the biogeochemical cycle. Define rhizospere?

Discuss the causative agent,mode of transmission and clinical symptoms and 2 priority nursing interventions for the following, Smallpox, Rubella, Chicken pox. Candidias,Pediculosis, Neonantal Gonorrheal Ophthalmia, Conjuctivitis and Trachoma.

Your paper has to be 1 page long.

8. Consider sports: why are we humans drawn to competition, and what does that say about our chances for survival on earth?

9. What survival skill does basketball mimic? How about baseball? Football (either kind!)?

A population of bears contains 56 animals with black fur and 25 animals with brown fur. Black fur is the dominant trait. How would you calculate the frequency of the brown alleles (write out the equation(s) with the appropriate numbers as well as the answer)?

You are in charge of the national Unicorn breeding program. Unicorns can have either swirled or solid horns with the swirled (Sw) phenotype being dominant over solid (sw). Their fur can be gold (F⁺), bronze (f^b), silver (f^s) or white (f^w), with the colour alleles following a dominance series of: F⁺ > f^b > f^s > f^w

^{question 1}

a) Which pair could you mate to potentially get some offspring with silver fur and swirled horns?

Select one:

a. A bronze and swirled horned unicorn with a white and solid horned unicorn

b. A true breeding gold and swirled horned unicorn with a true breeding white and solid horned unicorn

c. A silver and solid horned unicorn with a silver and solid horned unicorn

b) You mate a silver fur, solid horned unicorn, whose mother had white fur and a swirled horn, with a white fur, solid horned unicorn whose mother had gold fur and a solid horn.  What is the probability that the offspring will have white fur (with any type of horn)?

Select one:

a. 1/16

b. 1/3

c. 1/4

d. 1/2

question 2

Merfolk have three pairs of autosomes and one sex chromosome; males are X0 and females are XX.

In merfolk the genes controlling tail fin shape and scale colour are on different autosomes. Solid tail fin (Ff) is dominant to forked tail fin (ff), and the F allele is recessive lethal. There are two alleles of the scale colour gene – C^B(blue) and C^R (red)– C^B and C^R show incomplete dominance with heterozygotes being purple.

The silent trait is X-linked and dominant (X^S) to normal voice (X⁺).

Atolla is a male merfolk, he has a forked tail fin, blue scales, and is voiceless (silent). Brachy is a female merfolk with a solid tail fin, purple scales and a normal voice.

a) What is the probability that a female child of a mating between Brachy and Atolla will be silent (it doesn't matter what tail shape or scale colour the child has)?

Select one:

a. 1/4

b. 0

c. 1/2

d. 3/4

e. 1

b) What is the probability that a mating between Brachy and Atolla would produce a child with a forked tail and purple scales (doesn’t matter whether they are silent or not)?

Select one:

a. 3/4

b. 1/3

c. 1/4

d. 2/3

e. 1/2

c) You mate a female merfolk with blue scales who is heterozygote for silent and a carrier of forked tail, to a silent male with blue scales who is also a carrier of forked tail. Which of the following are TRUE statements (you can choose more than one)

For this question ignore the phenotypes that are unmentioned. For example "a blue female" is a blue female who can be any colour, and either be silent or normal.

Select one or more:

a. This mating can produce silent or normal voiced offspring

b. This mating can produce silent or normal voiced female offspring

c. The probability of a female offspring having a forked tail and blue scales is 1/3

d. The probability of an offspring from this mating having a forked tail and normal voice is 1/6