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Juliette [100K]
3 years ago
8

What does a nucleus do

Biology
1 answer:
loris [4]3 years ago
8 0
The nucleus directs all activities that happen within the cell and contains the cell genetic material (DNA).<span> The nucleus gives the signal to the cell to grow, divide and/or make proteins. </span>
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In Kerr and Wright's experiment with 96 fruit-fly populations, only 4 males and 4 females bred in each generation. After 16 gene
Svetradugi [14.3K]

Answer:

2.Less than 73% of the populations would have only one allele present.

Explanation:

The two alleles chosen do not affect the fitness of flies in the lab environment, so Kerr and Wright could be confident that if changes in the frequency of normal and forked phenotypes occurred, they would not be due to natural selection.

Using a larger breeding population would not be expected to alter the outcome of the experiment.

3 0
3 years ago
All of the following are included in the forebrain except the
Ede4ka [16]

A. Cerebellum

By far the largest region of your brain is the forebrain (derived from the developmental prosencephalon), which contains the entire cerebrum and several structures directly nestled within it - the thalamus, hypothalamus, the pineal gland and the limbic system.

3 0
3 years ago
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Why did Mendel study one trait at a time?
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Gregor Mendel conducted hybridization experiments on around 29,000 pea plants. Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate.

7 0
3 years ago
Transcription of DNA in eukaryotes is different from transcription in prokaryotes. In eukaryotes a gene that is transcribed make
vekshin1

Answer: Exons

Explanation:

In eukaryotic cell the primary transcript are very long the contains coding region (exons) and non coding region (introns)

The parts of the gene sequence that are expressed (coding region) in the protein are called exons, because they are expressed, while the parts of the gene sequence that are not expressed in the protein are called introns, because they come in between the exons.

Intron is a portion of a gene that does not code for amino acids. These Intron sequence are cleaved out and exons are spliced (I. E combine together) to form the mature mRNA molecule.

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5 0
3 years ago
Comparing Densities
ANEK [815]

Answer:

Ball A has more density.  

Explanation:

Density is found using mass divided by volume. Let's say ball A has a mass of 6 grams, and ball B has a mass of 3 grams. If the volume for both is 1 mL, then ball A has more density.

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2 years ago
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