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Marizza181 [45]
3 years ago
11

Please help

Biology
1 answer:
lara [203]3 years ago
3 0
Answer is D. 

you can learn A,B, and C from examining fossils
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Describe the typical principles used to identify topogenic sequences within proteins and how these principles can be used to dev
Sonja [21]

Answer:

Topogenic sequences share a series of structural features, and thereby computational algorithms can be used to predict these protein-membrane segments  

Explanation:

Topogenic sequences are protein segments formed by alpha-helical transmembrane domains, which are required for the insertion of membrane proteins. These domains share a series of well-defined features: they are composed of segments of about 20 hydrophobic amino-acid residues. In consequence, computational algorithms can be designed to identify protein patterns that fulfill these structural requirements (i.e. segments with a length of 20 residues, hydrophobic level, etc). The models assign a similarity threshold (threshold value) that predict if the similarity level of the protein pattern is good enough to detect a topogenic segment.

6 0
3 years ago
Which of the following represents the number of premolars in deciduous dentition of teeth in humans?
hammer [34]

The correct answer is E. 0

Explanation:

The deciduous dentition or baby teeth refer to the first set of teeth human have before the permanent teeth, these teeth are prevalent during infancy and include 20 teeth: 4 central incisors, 4 lateral incisors, 4 canines and 8 molars divided into 4 primary molars and 4 secondary ones. In the case of premolars, these are part of permanent teeth but not of deciduous teeth as they only appear after deciduous teeth begin being replaced and these replace the molars in deciduous dentition. Thus, the number of premolars in deciduous dentition in humans is 0.

8 0
3 years ago
Feather color in a certain species of bird is controlled by a pair of alleles that exhibit incomplete dominance. if birds that a
3241004551 [841]
The heterozygous birds phenotype would therefore be black and white because both parent genes are dominant so they would be fully expressed,none would overpower the other(no dominant or recessive) this is known as Codominance and and example of this is with the blood types.
6 0
3 years ago
At the end of which period did nearly three quarters of all species of life on earth go extinct in a very short time interval Ca
Ostrovityanka [42]

It's the cretaceous time period.

7 0
3 years ago
Soil reaction is _______. a. the measure of the acidity or alkalinity of soil b. the highest amount of cations soil can absorb c
VikaD [51]
I believe that the answer is A, if I am not mistaken!
4 0
3 years ago
Read 2 more answers
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