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kakasveta [241]
4 years ago
10

How can an allopolyploid plant become a biologically fit new species? view available hint(s) how can an allopolyploid plant beco

me a biologically fit new species? nondisjunction event during mitosis nondisjunction event during meiosis synapsis of homologous chromosomes allopolyploid plants cannot become biologically fit new species; they are always sterile?
Biology
1 answer:
Ilya [14]4 years ago
3 0

Nondisjunction event during meiosis

Nondisjunction is a process whereby sister chromatid or homologous chromosomes failed to separate during cell division. During meiosis, Nondisjunction produce eggs or sperms cell that don’t have the normal number of chromosome. However, there are three forms of Nondisjunction which were:

<span> a) Failure of sister chromatids to separate during meiosis II</span>

b) Failure of a pair of homologous chromosome to separate in meiosis I

c) Failure of sister chromatids to separate during mitosis.

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A. A population with an annual growth rate of 3% doubles roughly every ____ years.
nikklg [1K]

Answer:

a.

3*x=100\\100/3=33.(3)\\\\

And you can round 33.(3) to 33.

b.

4*x=100\\100/4=25\\\\

and the final result is 25.

c.

7*x=100\\100/7=14.29\\\\

And you can round 14.29 to 14.

Explanation:

First of all, you have to find how many times the growth rate would multiply to get closer to 100%. So if you multiply 3 times 33 you'll get 99. So, a population with an annual growth rate of 3% doubles roughly every 33 years.

This solution is just for annual growth rate that is one year long.

4 0
3 years ago
3. Clarify why test crosses are used<br> in selective breeding.
Shalnov [3]

Answer:

Test crosses are used in selective breeding because they can determine the genotype of the parent.

Explanation:

Also, I see it it ur first question. Welcome to Brainly!

7 0
3 years ago
Which of the following is not an effect of complement activation? Select one: Interference with viral replication Increased phag
Nostrana [21]

Answer:

The correct answer is "Interference with viral replication".

Explanation:

The complement system is an essential part of the immune system that involves the activation of a series of proteins that act as a cascade and result in the development of inflammatory responses that help to fight infections. There are multiple effects of complement activation, however interference with viral replication is not one of them. The molecules that are able to interfere with viral replication are called interferons, and they synthesis and activation are not related with complement activation.

6 0
4 years ago
Which statement best describes the relationship between forces?
melamori03 [73]
D.) Strong nuclear force is most like electric because they are both related to distance

7 0
3 years ago
Read 2 more answers
Based on your readings about Bt corn, express your opinion about whether or not farmers should continue planting Bt corn. Explai
nataly862011 [7]

Answer:

Although it is controversial topic, it is not a recommended practice among socienty to cultivate BT corn when alternative methods of increasing plant yield are already available. On the other hand, scientists are encouraging more research on genetically modified (GM) solutions with lesser/reduced impact on ecosystem.

Explanation:

Although, cultivating BT corn helps improving the yield, reduce insecticides usage, and enhance the grain quality, it has been extensively debated to reduce this practice globally. This is because of severals reasons. At first, cultivation of BT corn affects non-target organisms that interact with the plant for symbiotic or neutral reasons including pollination. Due to genetic modificaitons, BT corn produce BT-proteins that kills the non-target organism. Secondly, it increases the insect resistance and those insects which survives even after chewing plant tissues of BT-corn, they are found to have resistance against several toxins at high doses. Once these chemicals enters the food chain, they could be extremely toxic to other naturally growing organisms.

Prince Charles stated that use of GM plants is disaster and should be banned immediately. Likewise, he said that it is also impacting the climate change. On the other hand, Prof. Smith showed a contradictory opinion and said that the views of Prince Charles are saddening. He is seeing the one sided picture only. He should ask for extensive research rather discouraging this aspect of modern science.

In my opinion, I would also say that the technology should be improved and make more eco-friendly rather than complete abolishing especially when the apparent benefits are greater than the harmful effects.

3 0
4 years ago
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