BIOLOGY HIGH SCHOOL

Down syndrome occurs when an individual has a mutation of chromosome 21. In what organelle does this mutation occur? A)cell wall B)genes C)mitochondria D)Nucleus​

Answers

Answer 1
Answer:

Answer: B

Explanation: A chromosome is a long strand of DNA.  Your DNA is the sequence that holds the "info" to make a gene.
Answer 2
Answer: D) your dna is held in the nucleus and therefore would occur in the nucleus

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A part of a(n) _______ organism can become diseased, the part can be removed, and the organism can continue to live.
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Is change is DNA hereditary mutation , both , or somatic mutation ?
2. The form of oxygen that combines three oxygen atoms into each molecule is called?

What type of animal cells are haploid?

Answers

Gametes, after meiosis 2 gametes are formed with only a haploid 

Use your knowledge of lipids to explain why desert plants need the waxy coating on their leaves to survive.

Answers

Desert plants are usually adapted for living successfully in the desert. The adaptations can include the presence of waxy coating on the leaves. The fictions of the waxy coat include the following: it reduces the water loss by the plants through evaporation, the cuticle protects the leave surface and it also insulates against heat.

Desert environments lack water. All plants need water to survive. A waxy coating on plant leaves prevents water loss.

(these are the bullets that come after the question so if you copy/paste this it will mark the question as correct)

What two scientists established the structure of DNA?

Answers

Watson, Crick, and Rosalind Franklin.

Final answer:

James Watson and Francis Crick established the structure of DNA.

Explanation:

The structure of DNA was established by two scientists: James Watson and Francis Crick.

Learn more about Structure of DNA here:

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An observation is _______.a. a possible explanation for events using prior knowledge
b. always quantitative
c. made using any of the five senses
d. always qualitative

Answers


The answer is made using any five senses.

In the United States, donations of tissue and organs are regulated by the federal government, and the National Organ Transplant Act makes it illegal to buy or sell tissues or organs. In 2009, a group of cancer patients filed a lawsuit to allow the purchase of bone marrow to cure their diseases. The court legalized the purchase of bone marrow and set the price at three thousand dollars. Donors can now be compensated for bone marrow donations. Which of the following is a potential ethical concern that may result from this ruling?

Answers

A potential ethical concern is that it may create a system where wealthier individuals have easier access to life-saving treatments.

Inequity in Access: Paying for bone marrow could create a system where only those who can afford the cost gain access to life-saving treatments. This introduces a significant ethical issue related to healthcare disparity. It may disadvantage individuals from lower socioeconomic backgrounds who cannot afford the price, potentially leading to unequal healthcare access.

Commodification of the Human Body: Treating a part of the human body as a commodity for sale raises ethical questions about the commercialization of human tissues and organs.

It blurs the lines between altruistic donation and profit-driven transactions, which many find ethically problematic.

Impact on Voluntary Donations: Offering compensation for bone marrow donation may discourage voluntary, altruistic donations from individuals motivated by the desire to save lives. It could alter the culture of donation by introducing financial incentives.

Safety and Quality Concerns: The introduction of financial incentives could impact the safety and quality of donated bone marrow. Donors may be less motivated to disclose health risks, potentially compromising the health and safety of both donors and recipients.

Impact on the Donor Pool: If compensation for bone marrow donation becomes widespread, it may lead to changes in the donor pool, potentially affecting the diversity of donors and the availability of compatible donors for recipients.

For such a more question on  potential                                                                                                                                                                        

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Patients who cannot afford to purchase bone marrow will have to wait for voluntary donors.

The above picture represents the different stages a cell goes through in its "lifetime." Specific genes within the DNA, called inhibitors, stop the cell cycle in G1 phase. This process helps to keep the DNA unaltered and the cells dividing at the correct rate. If cells continue through the cell cycle, uncontrolled, _________ may likely develop.

Answers

The answer is a tumor.  

Tumors are characterized by cells that have a mutation in their DNA that causes them to reproduce unregulated hence proliferate and do not form true tissues.  Inhibitors, called tumor suppressors, act like a ‘brake’ in the cell cycle. Cyclins, on the other hand, are the ‘gas pedal’ for the cycle. The right balance ensures that cell cycle is well regulated.   When the DNA is a cell is damaged, the tumor suppressors are rectruited to stop any further progress of the cell cycle and the cell undergoes apoptosis.


Answer:

tumor

Explanation:

i took the test
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