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agasfer [191]
3 years ago
10

Why are eukaryotic cells more complex than prokaryotic cells?

Biology
1 answer:
Zielflug [23.3K]3 years ago
3 0

Answer:

eukaryotic cells have true nucleus that's why it's more complex.Prokaryotic cells have false nucleus

Explanation:

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Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive allele in humans. A woman whose father
prohojiy [21]

Answer:

(a) 1/2; (b) no

Explanation:

Glucose-6-phosphate dehydrogenase deficiency (G6PD) is an X-linked recessive disorder and the woman's father was diseased so it means that woman is a carrier of the allele but has normal phenotype. It means that she will have XXᵇ genotype.

In contrast to this, her husband is diseased so his genotype will be XᵇY.

The Punnett square diagram related to the cross is attached.

(a) Proportion of their sons expected to be G6PD is 1/2:

They both may give birth to 4 progeny with genotypes XXᵇ, XᵇXᵇ, XY and XᵇY. It means they both may have 2 sons out of which one with genotype XᵇY will be diseased while the one with genotype XY will be healthy. So the proportion of their sons having G6PD is 1/2 or 50%.

(b) If the husband were G6PD deficient, the answer will not change.

The reason behind this is that this disease is caused by an allele located in X chromosome. But father contributes only Y chromosome to his son not X chromosome. The X chromosome will affect the genotype of his daughter not son that is why answer will not change. It means they will still have 1/2 of their sons diseased.  

7 0
3 years ago
When a person is cut, the injured tissue initially releases chemical signals into the bloodstream. These chemicals signal platel
guajiro [1.7K]

Answer:

Platelets would release signals to stimulate the production of more platelets

Explanation:

Positive feedback mechanism is one of the two types of feedback mechanisms (other being negative feedback mechanism) in which the products of a process stimulates more of that product to be synthesized or produced. In other words, the result of a reaction increases the secretion of more results.

In this case where the injured tissue of a cut initially releases chemical signals into the bloodstream. These chemicals signal platelets to be attracted to the injured area. However, if this is a positive feedback mechanism as explained above, Platelets would release signals to stimulate the production of more platelets.

4 0
3 years ago
Which of these would not be considered an invasive species?
Marysya12 [62]

Answer:

C) In 1946, the Argentinian government imported fifty beavers from Canada, which were to be released in Cami Lake with the intention of creating a commercial fur trading industry. Though a viable industry ultimately failed to materialize, the introduction of the beavers into the region has had far-reaching consequences.

7 0
3 years ago
this part of the stomach contains thick muscle to mix the food and move the food into the duodenum. it is called _____.
Alla [95]

Answer:

Pylorus

Explanation:

The stomach is a J-shaped organ which is a part of the digestive system. The digestive system on one end is attached to the oesophagus and on the end to the small intestine.

The pylorus structure of the stomach is composed of thick muscles which help to mix or agitating the food in the stomach and controls the movement of the food to the duodenum which is the first part of the small intestine. The movement is controlled by the ring of muscles in the pylorus called pyloric sphincter.

Thus, Pylorus is the correct answer.

6 0
2 years ago
Like strain theory control theory explains deviance as a natural occurrence <br><br> T/F
vladimir1956 [14]
The answer is true

hope this helps 
8 0
3 years ago
Read 2 more answers
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