In which of the following ways might the effects of a mutation in a skin cell be different from those of a mutation in a sperm cell?Sperm cell mutations are more likely to get corrected since meiosis has two phases, while skin cell mutations have only the single phase of mitosis in which to be corrected.
A mutated sperm cell will always be destroyed during meiosis before it leaves the testes, while skin mutations remain within the skin.
There is little chance that a sperm mutation will affect the testes, while skin mutations almost always develop into cancer.
The mutation in the sperm cell could be passed on to offspring, while the skin cell mutation could only affect the individual.

Answers

Answer 1

Answer:

Answer:

The mutation in the sperm cell could be passed on to offspring, while the skin cell mutation could only affect the individual.

Explanation:

There are two types of mutations: germline mutations (which affect the ovules or sperm), and somatic mutations (they occur in certain cells, for example, in the skin). Each one is defined below:

-Germinal mutations are inherited from a parent and are present throughout life in each cell of the body. These mutations are located in the ovules or sperm of the parents and are transmitted as inherited mutations.

-Somatic mutations can occur at any given time and only in certain cells. These mutations may be due to, for example, environmental factors, such as radiation from the sun, in this case affecting skin cells. These types of acquired mutations are not transmitted to the next generation.

Answer 2

Answer: The mutation in the sperm cell could be passed on to offspring, while the skin cell mutation could only affect the individual.

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Luca the last universal common ancestor probaly had which of the following properties 1. Simple cellular structure. 2. Anaerobic metabolism. 3. Prokaryotic cell type. 4. Extremophile characteristics. 5. Heterotrophic nutritional strategy.

Answers

The last universal common ancestor (LUCA) is the most recent organism from which all organisms on Earth descended. While it is challenging to definitively determine the specific characteristics of LUCA, scientists have proposed certain properties that it likely possessed based on evolutionary and genetic evidence. Let's analyze each property mentioned in the question:

1. Simple cellular structure:

- LUCA is believed to have had a simple cellular structure. This means it likely had basic cellular components, such as a cell membrane, cytoplasm, and possibly some form of genetic material.

2. Anaerobic metabolism:

- LUCA is thought to have relied on anaerobic metabolism, which means it obtained energy from sources other than oxygen. This is because molecular oxygen was not abundant in the early Earth's atmosphere when LUCA is believed to have existed.

3. Prokaryotic cell type:

- It is widely accepted that LUCA was a prokaryote, meaning it had cells lacking a nucleus or other membrane-bound organelles. Prokaryotes are considered the most ancient type of cells on Earth.

4. Extremophile characteristics:

- While it is difficult to determine the specific environmental conditions in which LUCA lived, some scientists propose that it could have been an extremophile, capable of surviving in extreme environments like high temperatures, high salinity, or acidic conditions. However, this is still a topic of scientific debate and further research is needed.

5. Heterotrophic nutritional strategy:

- LUCA is believed to have been heterotrophic, meaning it obtained nutrients by consuming organic compounds produced by other organisms. This is in contrast to autotrophs, which can produce their own food through processes like photosynthesis.

In conclusion, based on current scientific understanding, LUCA is likely to have possessed the properties of a simple cellular structure, anaerobic metabolism, prokaryotic cell type, and a heterotrophic nutritional strategy. The presence of extremophile characteristics is still a subject of ongoing research and scientific investigation.

I hope this explanation clarifies the properties that LUCA is believed to have had. Let me know if you have any further questions.

How do plants obtain carbon atoms? a. from carbon in the soil
b. from microorganisms that live in soil
c. from carbon dioxide in the atmosphere
d. from animals that feed on the plants

Answers

the answer is C: FROM CARBON DIOXIDE IN THE ATMOSPHERE

The answer is C: From carbon dioxide in the atmosphere! It's because when we breathe in the oxygen that the plants produce we breathe out carbon dioxide and the plants kinda do the same thing just instead of breathing in oxygen they breathe in carbon dioxide and breathe out oxygen!

A lizard can lose its tail to escape a predator, and the tail will grow back at a constant rate. After 6 weeks, a lizard's tail has regrown to 3(3)/(4) inches long. Find the number of inches the tail

Answers

Answer:

the tail regrows at a rate of 5/8 inches per week.

Final answer:

The tail of a lizard is growing at a rate of 0.625 inches per week. This is calculated by dividing the total length the tail has regrown (3.75 inches) by the total time it took to grow (6 weeks).

Explanation:

The question is about the growth rate of a lizard's tail. We are told that after 6 weeks, the tail has regrown to 3 3/4 inches. So the question basically requires simple division to find out the rate at which the tail grows. The problem is solved as follows:

First, we convert 3 3/4 to a decimal to make it easier, which is 3.75 inches.

Then, we divide the length of the tail (3.75 inches) by the time it took to grow (6 weeks). This gives us the growth rate per week.

So, 3.75 ÷ 6 = 0.625. Therefore, the lizard's tail grows back at a rate of 0.625 inches per week.

Learn more about Rate here:

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"If a cell is compared to a home, then name the cell organelles which would represent the given parts of a home: • Door • Parents • Kitchen • Electric Mains • Store Room • Dustbin"

Answers

Door: Cell membrane

Parents: Nucleus

Kitchen: Endoplasmic Reticulum (smooth & Rough)

Electric Mains: Mitochondria

Store Room: Vacuoles and vesicles

Dustbin: Lysosome
________________________________

In this cell-to-home analogy:

• The Cell Membrane is like a door because it controls what enters and exits the cell, much like a door regulates who enters and leaves a home.
• The Nucleus represents parents because it holds genetic information, like parents pass on their genetic information to their children.
• The Endoplasmic Reticulum (both smooth and rough ER) is like a kitchen where various tasks, such as making and processing materials, take place, similar to food preparation in a kitchen.
• Mitochondria serve as the electric mains, generating energy for the cell, just like the electric mains provide power to a home.
• Vacuoles and Vesicles act as storage rooms in a cell, akin to a home’s store room used for holding various items.
• Lysosomes function as a dustbin, breaking down waste and cellular debris, like a dustbin collects and disposes of trash in a home.

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Answers

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Answers

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