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cricket20 [7]
3 years ago
9

Sarah sets aside time every night to read some pages in her history book. She schedules a break into her study time. Why is this

not an effective study plan?
Biology
1 answer:
Luba_88 [7]3 years ago
4 0
The task is not realistic for the time she has set aside.
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During meiosis, a defect occurs in a cell that results in the failure of microtubules, spindle fibers, to bind at the kinetochor
mario62 [17]

Answer:

The resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.

Explanation:

Formation of functional microtubule spindle fibers and their attachment to kinetochores of chromosomes is required to ensure their alignment st the cell's equator during metaphase. During anaphase, shortening of these microtubules pulls the chromosomes to the opposite poles. These events ensure the distribution of the correct number of chromosomes among the daughter cells. The presence of defective microtubules would not allow proper distribution of chromosomes to the daughter cells and would result in the presence of an abnormal number of chromosomes (aneuploidy).

7 0
3 years ago
When an action potential reaches the end of the axon, what happens next?
ANTONII [103]
The neuron releases chemical messengers. Otherwise, there would be no 'signal transduction' in the postsynaptic cell. So, your answer is B.
5 0
3 years ago
Read 2 more answers
The atomic number, of an element, indicates​
Vinil7 [7]
The number of protons in the nucleus of the atom.
7 0
2 years ago
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Suppose a point mutation, such as a change from an adenine to a guanine, occurs in the genome of a human sperm cell. The mutatio
yulyashka [42]

Answer:

B. The mutation results in a new, dominant allele

C. The mutation occurs in a gene that controls development and alters differentiation of a cell type during development.

D. The mutation occurs in a codon and alters the function of the final protein

Explanation:

All the above things will change the <u>ultimate expression</u> or phenotype by altering the proteins. Choices B, C, and D will all change the outer functioning.

Choice A only affects the rate of transcription, so it may go faster or slower, but the end product will be the same.

This part that doesn't look like it's one of the choices ("The mutation occurs in a portion of an intron not responsible for exon splicing.") would not affect phenotype, because introns are removed before the RNA is sent out.

Choice E says that the amino acid sequence is unchanged, meaning the protein final product will be the same and the expression will not change.

7 0
3 years ago
Which of the following are found in cell membranes? a lipids b DNA c RNA d glucose
lara31 [8.8K]
C is found in cell membranes
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3 years ago
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