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2 years ago

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A serious genetic disorder known as hemochromatosis is often called the rusty organ disease and affects nearly 1.5 million ameri

cans. the disorder causes increased absorption of intestinal iron. which organ is responsible for iron homeostasis?

2 answers:

jonny [76]2 years ago

8 0

The liver is responsible for <span>hemochromatosis. </span>

ki77a [65]2 years ago

5 0

Answer: it’s the liver

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Which of the following does not represent a common outcome following introduction of foreign DNA into a bacterial cell?Choose on

AleksandrR [38]

Answer:

The correct option is A, since if the DNA enters in a circular form it is called a plasmid, and the plasmids upon entering the bacteria self-replicate outside the genetic structure, which gives the bacteria better survival qualities.

Explanation:

Plasmids are generally circular extrachromosomal DNA molecules that replicate and transmit independently of chromosomal DNA, and are normally present in bacteria, archaea, and sometimes in eukaryotic organisms such as yeast. Its size varies from 3 to 10 kb. The number of plasmids can vary, depending on their type, from a single copy to a few hundred per cell. Plasmid vectors allow cloning of exogenous DNA ligands of up to 4 kb since a larger size than this makes cloning in these vectors difficult. The term plasmid was first introduced by the American molecular biologist Joshua Lederberg in 1952. Plasmids can only coexist as one or more copies in each bacterium, due to cell division they can be lost in one of the secreted bacteria.

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3 years ago

Name three pituitary hormones, and state how they affect their targets.

steposvetlana [31]

Growth hormone- stimulates body cells to synthesize proteins and grow. Follicle- Stimulation hormone- stimulates the ovaries to develop mature eggs and stimulates the testes to produce sperm.

thyroid- stimulation hormone- stimulates the thyroid gland to secrete thyroid hormones

I kno dis because i did a quizlet on it :)

H O P E T H I S H E L P E D <3

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2 years ago

Which of the following might make this ecosystem more sustainable?

ivolga24 [154]

Answer: i think so

Explanation:

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2 years ago

Read 2 more answers

The branch of biology dealing with interactions among organisms and between organisms and their environment is called

Juliette [100K]

I believe this study is called ecology.

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3 years ago

Mars had an orbital period of 1.88 years. In two or more complete sentences,explain how to calculate the average distance from m

Vanyuwa [196]

This is an interesting problem involving astronomy, in fact, simple physics.
Let r=distance of sun to mars, in metres

<span>Mars had an orbital period of 1.88 years.
=>
tangential velocity, v, of the planet, in m/s is
$v=\frac{2\pi{r}}{T}$
</span> $=\frac{2\pi{r}}{1.88*365.25*86400}$ m/s, accounting for leap years
$=3.371*10^{-8}\pi{r}$ m/s

The centripetal force, Fc, generated is
$Fc=\frac{mv^2}{r}$
where m=mass of mars = 6.39*10^(24) kg
$=\frac{mv^2}{r}$
$=\frac{6.39*10^{24}v^2}{r}$
$=7.26168*10^9\pi^2r$

The gravitation pull from the sun, Fg, is given by
$Fg=\frac{GMm}{r^2}$
where G=grav. const., =6.67408*10^(-11) m^3<span> kg^(</span>-1)<span> s^(</span>-2)
M=mass of sun=1.989*10^(30) kg
$=\frac{6.67408*10^{-11}1.989*10^{30}6.39*10^{24}}{r^2}$
$=\frac{8.4826*10^44}{r^2}$

Since the radial distance is in equilibrium, the average distance, r can be found by equation Fc=Fg and solving for r:
Fc=Fg
=>
$7.26168*10^9\pi^2r=\frac{8.4826*10^44}{r^2}$
Solving for the real root:
$r^3=\frac{8.48256*10^44}{7.26168*10^9*%pi^2}$
$=\frac{1.1681263*10^{35}}{\pi^2}$
=2.279*10^11 m

5 0

3 years ago