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bonufazy [111]
3 years ago
12

What is the mutation responsible for sickle cell disease

Biology
1 answer:
DochEvi [55]3 years ago
5 0
The mutation is a change in just one nucleotide in the gene for hemogloblin.
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The ostrich is a bird. However, it has traits that are different from those of the birds we typically see flying around our neig
Romashka-Z-Leto [24]

Answer:

I found this from someone else. This is not my work, Also if this does not answer the question ask the question on here and you can see more answers. hope this helps.!

Explanation:

According to National Geographic, ostriches are a part of a very small group of birds that cannot fly because unlike most birds, their small wings are not strong enough to carry their body for flight and their breastbone isn't balanced enough for flying. Birds that are unable to fly are called ratites.

A number of scientists namely Thomas Huxley, Richard Owen, and others have tried to show that these ratites are actually related to each other and eventually, it was discovered that they all had one thing in common, the way the bones at the roof of the mouth were arranged was similar to that of reptiles rather than other birds.

Richard Owen found and assembled the remains of an extinct ostrich skeleton which was an extinct moa and contrary to already held opinion, one ratite known as tinamous did not really fit with the profile of a ratite because it could fly, even though almost grudgingly and they possessed keeled sternum which suggests that they evolved from flying birds.

DNA tests showed that tinamous evolved within ratites and not necessarily as a separate entity. The tests also showed that moas and tinamous are related.

It was also speculated that the division of the supercontinent Pangaea southern side led to the separation of flightless ratite ancestors, causing each landlocked group to evolve and become the flightless birds we know today such as the ostrich, rheas, etc.

5 0
2 years ago
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Why is it important to understand the process of mitosis
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It is important to understand because it's the way all cells reproduce (except sperm and egg cells, they do meiosis), and our cells are the essential parts of our whole being.
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3 years ago
What is the two different between vacuole and nucleus of a cell​
Masteriza [31]

Answer:

It is spherical in shape and directs and command all the function of the cell, Found only in eukaryotes

Explanation:

vacuole are fluid filled membrane bound space .there are many small vacuoles in plant cell and one large vacuole in animal cell

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It should be C. It is very literal, but I think C
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Canopy layer my friends :D
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