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Karolina [17]
3 years ago
8

Assume you are working for a chemical company and are responsible for growing a yeast culture that produces ethanol. The yeasts

are growing well on the maltose medium but are not producing alcohol. What is the most likely explanation?a. the maltose is toxic
b. O₂ is in the medium
c. not enough protein is provided
d. the temperature is too low
e. the temperature is too high
Biology
1 answer:
Kipish [7]3 years ago
4 0

Answer:

D - The temperature is too low

Explanation:

The fermentation process has limits such as temperature. Greater than 27°C kills the yeast less and than 15°C results in yeast activity which is too slow.

Therefore, if the yeasts are growing well on the maltose medium but are not producing alcohol it is as a result of low temperature

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Which of the following does not represent kinetic energy?
vampirchik [111]

Answer:

A Car on the top of a hill

Explanation:

A Car on the top of the hill because The car isn't moving so it has potential energy NOT Kinetic

4 0
3 years ago
a warming global climate can create hot and dry regions. it can also contribute to natural CO2 emissions. For example, lighting
motikmotik

<em>b. wildfires</em>

<em>b. magnified the greenhouse effect</em>


The first blank is pretty simple; if lightning (electricity) strikes something flammable, like a forest, a fire is sure to ensue. This fire will obviously spread to the other trees and cause a massive wildfire.

The second blank is the greenhouse effect. The greenhouse effect is said to have caused our warming climate, which makes sense because heat from the sun gets trapped in our global "greenhouse", or the lower atmosphere. Lower atmosphere is key here because a large event like a massive wildfire can add some more heat to the atmosphere and contribute to this effect. A wildfire may seem like a minor event on a global scale, but it will do more damage to the atmosphere than you think!

9 0
3 years ago
Read 2 more answers
Q:- In dogs, the Mexican hairless phenotype never breeds true. When Mexican hairless are interbred the offspring are 2/3 hairles
drek231 [11]

Explanation:

The problem says that the hairless phenotype never breeds true. That means that it's not the result of a homozygous genotype (H₁H₁ or H₂H₂), so it is caused by the heterozygous genotype (H₁H₂).

The <u>expected </u>offspring from the cross between two Mexican hairless would be:

<h3>P                 H₁H₂  x  H₁H₂</h3><h3>F1    1/4 H₁H₁,  2/4 H₁H₂ and 1/4 H₂H₂.</h3>

And the <u>expected</u> phenotypic ratio 3:1. However, the observed offspring shows a 2:1 ratio. What's happening?

If the observed phenotypic ratio in the offspring of a monohybrid cross (a single gene with two alleles) is 2:1, we can suspect that one of the genotypes is lethal in homozygosis and therefore does not appear in the progeny (the puppies are born dead).

If we proposed that the H₂ allele is lethal in homozygosis, then:

  • The H₁H₁ genotype would cause normal puppies --> 1
  • The H₁H₂ genotype would cause hairless puppies --> 2
  • The H₂H₂ is lethal and causes the death of puppies --> 0

The phenotypic ratios change to 2:1, as observed in the experiment.

7 0
3 years ago
(c)
Gwar [14]

Answer:

villi is used and is very imp as it has structure like finger type which help for increase in surface area for more absorption and less wastage of water/minerals

3 0
3 years ago
What would be the outcome of crossing two strains of wingless flies that belong to the same complementation group?
STALIN [3.7K]

Answer:

Wingless offspring

Explanation:

Complementation is the terminology used for finding difference in the mutation of same or different gene.  

Two groups with same complementation have failed to complement each other.  

Thus, two wingless flies will have the same genotype i.e “ww”

When two wingless flies are crossed following offspring are produced  

ww * ww  

ww, ww, ww, ww

All the offspring are wingless too

8 0
3 years ago
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