4. In biology making the next generation is known as

Biology

1 answer:

balu736 [363]3 years ago

7 0

Answer: Reproduction. One must reproduce in order to continue the generational line.

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Dafna1 [17]

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3 years ago

From an evolutionary perspective mitochondria and chloroplasts are the result of what process

fomenos

<span>Mitochondria and chloroplasts are the result of the process called endosymbiosis. Mitochondria and the chloroplasts are originally from the prokaryotes. They have the ability to take up inside a large single cell organism which they help each other in order to produce energy for each other. Endosymbiosis, from the term symbiosis, the organisms that are symbiotic is living inside the other pair, just like how the mitochondria and chloroplasts responds to each other.</span>

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4 years ago

What are known causes of epigenetic effects, and how do they

OverLord2011 [107]

Answer:

Epigenetic effects can be caused by DNA heterochromatin and/or histone silence or activate.

As such, they can different chromosomes or certain chromosomal regions and be responsible for parental imprinting or influencing gene activity in oxidation and reduction.

Patterns of nucleotide demethylation and hypermethylation are often activate when cancer cells are compared to normal cells.

Explanation:

Cells acquire various patterns of gene expression during differentiation to adapt to a changing environment. Epigenetic and genetic alterations are considered as two independent mechanisms that participate in the onset and progression of cancer. Epigenetic mechanisms can be as important for biological events as genetic mechanisms, which do not imply a change in the DNA sequence, but do have an important role in the modification of gene expression.

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3 years ago

Is this correct? Or am I doing this wrong?

lara [203]

Yes, you are doing this correct.

8 0

3 years ago

Species a diverged from species b 60,000 years ago. On a particular gene, they have 15 nucleotide differences. How many nucleoti

a_sh-v [17]

The given question says that b species diverged around 60,000 year ago from species a. Since the divergence, they have a nucleotide difference of 15 nucleotide.

We need to find out the nucleotide difference in another 240,000 year, which means a total of 300,000 year since divergence.

The nucleotide difference in 60,000 years = 15 nucleotide.

The nucleotide difference in 1 year = $\frac{15}{60,000}$ nucleotide.

The nucleotide difference in 300,000 years = $\frac{15}{60,000}\times 300,000$ nucleotide.

The nucleotide difference in 300,000 years = 75 nucleotide.

Hence, after another 240,000 years or 300,000 years since divergence, the species and species b would show a difference of 75 nucleotide.

In another 240,000 years, there would be 60 nucleotide difference, as 15 of the nucleotide are already different in initial 60,000 years from the total of 75 nucleotide difference in 300,000 years. So, 60 (75-15) nucleotide difference would be observed in next 240,000 years.

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3 years ago