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Harman [31]
3 years ago
11

Sickle cell disease provides an example for which principle of molecular genetics? A. A point mutation always causes a significa

nt change in phenotype. B. A point mutation always causes a change to an amino acid sequence, which may affect phenotype. C. A significant change in phenotype may cause a genetic mutation. D. A change to one amino acid in a protein may cause a significant change in phenotype.
Biology
1 answer:
erastovalidia [21]3 years ago
3 0

Answer:D. A change to one amino acid in a protein may cause a significant change in phenotype.

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By growing on the trunk or branch of a tree, a lichen gains height and exposure to sunlight for photosynthesis. The tree is not
Dafna11 [192]

Answer:

a. commensalism is the correct answer.

Explanation:

By growing on the trunk or branch of a tree, a lichen gains height and exposure to sunlight for photosynthesis. The tree is not harmed by the lichen but does not benefit either. The relationship between the lichen and the tree is commensalism.

Commensalism is a relationship between two organisms where one organism gets benefits from other organisms without causing any harm or any damage from the relation as it one side symbiotic relation.

In this, we can see lichen is getting benefits from the tree.

for example, lichen is getting following benefits from the tree such as ( a lichen gains height and exposure to sunlight for photosynthesis.) and they are causing any harm to tree neither any benefits so this is a one-side symbiotic relation and thus the relationship is an example of commensalism.

5 0
3 years ago
Which of these connections are used for camcorders, dvd players, and gaming consoles?
Bezzdna [24]

The FireWiire is connection used for camcorders, DVD players, and gaming consoles. The standard that defines the FireWire connection is <span>IEEE 1394. IT  is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer. </span>

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7 0
3 years ago
Many proteins have a structure that allows them to change shape in order to accomplish their function. How could the motor prote
REY [17]

Answer:

Motor protein kinesin can "walk" along a microtubule while carrying vesicles and by changing its shape the kinesin.

Explanation:

Motor protein kinesin is an important microtubule based motor protein that  is conserved among all eukaryotic organisms. Its movement along the microtubule is ATP powered. Most of the kinesins  walk towards the plus end of the microtubule.

Due to its ability it is responsible for unidirectional transportation of cargos including membranous organelles and mRNA.

6 0
2 years ago
Jenna is trying to construct a pedigree for the occurrence of red hair in her family. She has two sisters, one older and one you
Kisachek [45]

Answer:

Explanation:

Based on the scenario being described within the question it can be said that the components of Jenna's pedigree will be a line connecting her mother and father, a colored circle representing Jenna, and two empty circles representing her sisters. Thus representing that the line connects the parents and the three circles are the children of that couple. And the colored in circle represents the child with colored hair.

3 0
3 years ago
In what structures do the enzymes actually chemically digest food?
VashaNatasha [74]
It's the amalyse that digested the food or starch in out mouth. Amalyse is an enzyme that is responsible to break down the starch in to sugar. Usually, it is present in our saliva, this is where the digestion started then next to our stomach.
5 0
3 years ago
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