Why does nitrogen from amino acids have to be metabolised?

What leads to an individual having too many or two few chromosomes

lyudmila [28]

Non-disjunction occurs when a the chromosomes do not split properly during meiosis resulting in too few chromosomes I believe.

4 0

4 years ago

A drug company performed a study to test the effectiveness of a new headache medicine. The researchers grouped the patients

DiKsa [7]

B. Because they don’t want to see the patients real reaction to the medication to see if it is actually effective

7 0

3 years ago

President Nixon resigned from the presidency because he had an argument with his advisors lost the support of the American peopl

Anarel [89]

: Rationale: A lack of support. It was discovered that Nixon’s advisors had connections to the individuals involved in the burglary at the democratic headquarters. Not long after, Nixon was forced to release transcripts of all his recorded conversations at the White House. Nixon complied, but did not turn over any of the recorded conversations with his advisors. He claimed that as president he had the right to keep discussions with his advisors private. As the case details were released through the media, Americans were shocked to learn that the President might be involved in criminal activity and withdrew their support.

3 0

3 years ago

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Yeast cells are recovered from a fermentation broth by using a tubular centrifuge. Sixty percent of the cells are recovered at a

Serga [27]

Answer:

$\\ \omega = 5033.22 \ rpm$

Explanation:

Given that:

$R_1 = 0.6\\\\R_2 = 0.95\\\\\omega_1 = 4000 \ rpm\\\\\omega_2 = ???\\\\Q_1 = 12\ l/min\\\\Q_2 = 12\ l/min$

For a continuous centrifuge ; solid recovery R ∝ $\frac{\omega^2}{Q}$

where;

ω = angular velocity of the centrifuge in rpm

Q = flow rate

SO;

$R_1 \alpha \frac{4000^2}{12}$

$R_2 \alpha \frac{\omega^2}{12}$

$\frac{R_1}{R_2} = \frac{4000^2}{12}$ ÷ $\frac{\omega^2 }{12}$

$\frac{R_1}{R_2} = \frac{4000^2}{12} * \frac{12}{\omega^2}$

$\frac{R_1}{R_2} = \frac{4000^2}{\omega^2}\\\\\frac{0.6}{0.95} = \frac{4000^2}{\omega^2}$

${\omega^2} = \frac{4000^2*0.95}{0.6}\\\\\\{\omega} = \sqrt{ \frac{4000^2*0.95}{0.6}}\\\\\\ \omega = 5033.22 \ rpm$

7 0

3 years ago

The graph above was made by a South American biologist in the country of Brazil, after a long study on parrots. About 200 years

hoa [83]

This question is unfortunately incomplete as the graph is not visible. The options given are:
A) Red parrots have become less common in the last 200 years.

B) There are probably less green parrots today than there once were.

C) Blue parrots probably are the best adapted species to live on farms.

D) The blue parrot population has likely increased in the last 200 years.

The answer is B. This is because the graph shows the highest number of green parrots in the 'deep forest' category of environment, whereas the numbers in the 'grassland' and 'scrub forest' are less. Since the forested area in Brazil has decreased rapidly, this means that the preferred environment of the green parrot has decreased, probably resulting in a decline in the green parrot population

7 0

4 years ago

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