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Mnenie [13.5K]
3 years ago
11

Radioactive dating of fossils and rocks is possible because radioactive isotopes

Biology
1 answer:
kiruha [24]3 years ago
4 0
What is your question?
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At the end of mitosis, __________ daughter cells that are genetically __________ are formed, while at the end of meiosis, ______
Bond [772]

Answer:

At the end of mitosis, __two________ daughter cells that are genetically _____similar_____ are formed, while at the end of meiosis, _____four_____ daughter cells that are genetically _____distinct_____ are formed.

Explanation:there are two types of cell division; mitosis which occurs in somatic cells and meiosis which occurs in reproductive cells.

In mitosis, division occurs once leading to the production of two daughters cells.crossing over does not occur in the chromosome, so the daughter cells are genetically identical to the parent cell.

In meiosis,cell division occurs twice ,(meiosis I & II),leading to the production of four daughter cells.

Crossing over occurs,leading to genetic variation in the daughter cells.

4 0
3 years ago
What happens to plant and animal cells in isotonic,hypotonic, and hypertonic cells
omeli [17]
Isotonic solution nothing happens to the cell it exists as it is.....in a hypotonic solution the cell will shrivel up and in hypertonic solution it will swell to the point of rupturing (aka cytolyse)
6 0
3 years ago
10
lina2011 [118]

Explanation:

The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.

5 0
3 years ago
Which of the following statements about change in ecosystems is true?
neonofarm [45]
Ecosystems experience change through human activity and natural events. This is because human activity can impact changes in nature, like climate for example. As a result, ecosystems change in response to the change in nature or natural events, which was caused by human activities. They are interrelated so to speak.  
6 0
3 years ago
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A man with blood type B marries a woman with blood type A . Their first child has blood type 0 . Use a Punnett square to predict
Sauron [17]
The punnett square is attached to this.
The other possibilities are AB, BO, and AO. 
All of them have 25%.

8 0
3 years ago
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