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Ulleksa [173]
1 year ago
12

What frameshift mutation

Biology
1 answer:
meriva1 year ago
8 0
A frame shift mutation is a genetic mutation caused by insertions or deletions of nucleotide in a DNA sequence that is not divisible by 3.
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Weight loss can occur when glucose is oxidized to CO2 rather than being stored as glycogen. The first step in glucose oxidation
lions [1.4K]
Increasing permeability of the inner mitochondrion membrane to protons uncouples proton transport with ATP synthesis. As ATP synthesis in oxidative phosphorylation across ATP synthase is dependent on the proton gradient, increasing permeability of the membrane would reduce the amount of ATP synthesized as less protons will flow through ATP synthase. ADP is thus not converted to ATP and there is high amounts of ADP and AMP. High amounts of ADP and AMP will activate the glycolytic pathways and hence actively PFK hence the answer would be C.
8 0
1 year ago
Scientists used cells called fibroblasts to study factors that cause nondividing cells in the G0 stage of the cell cycle to reen
dalvyx [7]

Answer:

a)

Based on the data for the group of cells, among the four proteins, protein p16 does not appear to play a role in blocking cell cycle entry by fibroblasts. The evidence for this is in group 7, where, in the absence of the other proteins the p16 presence has helped the replication of DNA almost as good as the growth in the 10% serum.

In the other groups (3 to 6) the presence of any other protein has always inhibited the DNA replication compared to the fibroblast in 10% serum.

b)

Groups 4 to 7 have higher chance of including cells undergoing mitosis as they are showing more DNA replication compared to the group 1 which has 0% serum. In this group since it has been cultured for 48 hours in the absence of serum (serum-starvation), they stop dividing and enter the G0 stage of the cell cycle.

c)

The data here would provide the crucial information on which protein is required to induce the cells to enter the cell cycle. To recover from an injury the cells should divide and repair the wound, this will happen through stimulating the cell with the required protein. It would also shed light on which protein would inhibit the cells from entry into the cell cycle.

Note: Figure is added in the attachment section

3 0
2 years ago
In a particular human family, John and his mother both have brachydactyly (a rare autosomal dominant allele causing short finger
Luba_88 [7]

Answer:

Brachydactyly and Huntington are phenotypic diseases that develop when a person has one or two dominant alleles for these traits.

John's father has the Huntington disease, but not brachydactyly so his genotype is Hh/bb.

John's mother is a healthy women with brachydactyly, so her's genotype is probably hh/BB or hh/Bb.

5 0
2 years ago
Biological control methods for managing insect pests are effective for reasons that include which of the following? They promote
Semenov [28]

Answer:

Option B, They generally focus on one target insect to ensure that the target insect population remains low.

Explanation:

Biological pest control methodologies are focused towards a specific species of pest and do not harm the non-targeted species. These methods are environment friendly and do not produce any harmful residues. Also they do not develop any kind of resistance in species due to which the same bio pesticide can be used again and again. Since these methods have high specificity, they may require usage of two or more bio pesticides all together.  

Hence, option B is correct

4 0
2 years ago
In an action potential, the current that flows down the axon of a neuron is generated by the movement of ______ across the membr
notsponge [240]
I think the correct answer is ions.
An action potential occurs when a neuron sends information down an axon, away from the cell body. A neuron that emits an action potential, or nerve impulse is said to fire. These action potentials are generated by special types of voltage hated ion channels that are embedded in the plasma membrane of the cell. 
4 0
1 year ago
Read 2 more answers
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