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3 years ago

20. Geneticists creating the "glow in the dark" or fluorescent rabbit, inserted the GFP gene

Biology

1 answer:

juin [17]3 years ago

3 0

The correct answer is C) the fluorescent cells can help track the movement of cells.

Explanation:

In the last years, geneticists and scientists created animals that glow in the dark by inserting a Green Fluorescent Protein or GFP gene found in some species of jellyfish. This protein was used in animals such as rabbits, rats, and even chickens. One of the key reasons for this is that by inserting fluorescence scientists can better observe the development and movement of cells. This includes analyzing cells reproduction and growing in embryos of "glowing" animals or inserting the protein in specific cells or organs in an organism to observe how these change or move. Thus, the purpose of studying fluorescent rabbits is that "the fluorescent cells can help track the movement of cells".

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The disadvantages of inbreeding include ________.

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Inbreeding results which can increase the chances of offspring being affected by deleterious or recessive traits. This usually leads to at least temporarily decreased biological fitness of a population (called inbreeding depression), which is its ability to survive and reproduce.

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3 years ago

Would a fruit fly offspring be more or less genetically diverse than human offspring?

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2 years ago

Does increasing the air temperature of fact the average number of hours a mouse sleeps per day?

Murljashka [212]

Answer:

Hmmm... I'm no Expert when it comes to this, but I think it's safe to say yes.

Explanation:

From what I know, Mice and humans have around the same average body temperatures (Since we are both warm-blooded mammals).

One key difference between mice and humans when it comes to heat regulation is the topic of homeostasis and heat regulation.

Based on a study posted on FebsPress, "At ambient environmental temperature (~ 22 °C), over one‐third of energy expenditure in mice is devoted to maintaining core body temperature, largely by brown adipose tissue. To conserve this energy, mice can enter a regulated hypothermia, while humans do not." (Marc L. Reitman).

Since mice are so small, they have to work harder than a human or any larger mammal to maintain heat. This is also why they need to eat so much every day (to maintain a constant metabolic rate without starving themselves).

Now back to the key topic, "will air temperature affect the average number of hours a mouse sleeps per day?"

It is true that in humans, very low temperatures and very high temperatures can affect the sleep cycle because the body then has to exert more energy to maintain a comfortable internal body temperature.

Now, think back to what I said regarding the size of a mouse and what that means for it's metabolic rate.

This means, that too low/high air temperatures -- are likely to awaken the mouse or simply kill it. As one of the human body's goals is to maintain homeostasis, this goal is also evident in that of a mouse's body.

So, for the mouse to keep a consistent bodily temperature, it wouldn't sleep as long as a human, as mice have to eat at around their own body weight each day.

Note: Sorry for the length of this. I'd meant to keep it short and sweet but got caught up with the research. Haha.

#SpreadTheLove<3

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