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3 years ago

What would be the most likely outcome if the lysosomes of a human cell stopped functioning?

Biology

1 answer:

maw [93]3 years ago

3 0

Waste would start to build up in the cell since lysosomes have the role of intracellular digestion of waste materials.

A known disease that is caused by a lysosomal malfunction is Hunter's disease

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Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have norma

Mama L [17]

<h2>The correct answer is : C.</h2>

Explanation:

According to the question, mating between two populations of Rhagoletis produce hybrid flies.
This means that the two population is present in the same habitat or locality, hence they are capable of coming in contact with each other and mate. Hence, the answer cannot be Habitat Isolation.
Mating produces hybrid flies. This is possible when the gametes (egg and sperm) of the two different populations are capable of capable of coming close to each other and undergoing fusion (fertilization). Hence, there is no Mechanical Isolation.
The zygote formed by the above fertilization is capable of developing into healthy hybrid flies with normal life span. Hence, Pre-zygotic Isolation is absent.
But the hybrid flies formed are sterile and not fertile, that is, they are incapable of producing viable gametes which can undergo fertilization and produce a new offspring.Therefore, the eggs laid by the hybrid flies hatch less often. Hence, there is existence of Reduced hybrid fertility.

8 0

4 years ago

Please help me with this question!

pickupchik [31]

1) a decrease in the amount of groundwater.

3 0

3 years ago

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1.True or false: Shakespeare followed the Elizabethan structure of a four-act play.

sashaice [31]

For one it is False

two is exhibition

I need terms to answer three

4 0

3 years ago

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Please answer it please

Alex777 [14]

Answer:

7-d

8-b

9-?

10-b

11-c

12-?

13-b

Explanation:

3 0

3 years ago

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Many mutations have been identified in the lac operon. A particular mutation in the CRP gene make the CRP protein bind to the Pl

maksim [4K]

Answer:

a. + glucose, + lactose = On

b. - glucose, - lactose = Off

c. + glucose, - lactose = Off

d. - glucose, + lactose = On

Explanation:

Lac operon has both types of control, repressible and inducible.

Whenever glucose level is low in the cell, an enzyme known as adenylyl cyclase raises the level of cAMP which forms a dimer with CRP protein and they both act as activator of lac operon and cause expression.

Apart from this, when lactose is present in the cell, β-galactosidase enzyme metabolizes lactose to form allolactose which causes allosteric repulsion in the lac repressor and causes its removal from the operator. As soon as repressor is removed lac operon gets activated.

In wild type lac operons, the expression of lac operon occurs when glucose level is low in the cell and lactose is present but in this mutant presence or absence of glucose will not make a difference because CRP will bind Plac promoter independent of cAMP level i.e. activator CRP will work even in high glucose concentration. If lactose is present then lac operon will always express so in option 'a & d' lac operon will express but in option 'b & c' it will not express.

3 0

4 years ago