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Kay [80]
3 years ago
15

What adaption allows the cactus to thrive ? Needles to prevent dying out ..Or deep roots to absorb ground water?

Biology
1 answer:
Rainbow [258]3 years ago
8 0

The answer would be deep roots to absorb ground water.


Cacti are found in deserts, which do not receive much rain.  Cacti, like all plants, need water to live so deep roots would help the cactus obtain water.


Hope this helps!

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How might an RNA-based genome result in an increased infection rate? What are some potential complications to this infection str
WITCHER [35]

Answer:

I think the question is "How might an RNA-based genome results display an increased in infection rate?" because current statement doesn't convey a message clearly.

Explanation:

To answer this question, we need to understand first that what is gene expression. Gene expression is a process in which genetic information is transcribed first to RNA and then into proteins. During transcription stage, only active genes would be transcribed to RNA and all other DNA material don't transcribe at all. Now, if there is an infection, host cell would express only those genes which would actively take part in the defense mechanism, e.g. R-genes, genes involved in production of reactive oxygen species, etc. Hence, to monitor the infection rate, we will look at the RNA-based genome. To do this, we will extract the total RNA and then would sequence it. Then we will annotate the genes and check the relative abundance (differential expression). Finally, we would have a clear that these genes were active against the infection. By doing temporal sampling and sequencing, we would be able to measure the rate as well.

For the second part, potential complications that could arise in doing analysis is the lower amount of RNA, or rapid degradation of RNA in case of presence of RNAses. RNA can be degraded easily at room temperature.

3 0
3 years ago
A genetic cross with two genes produces 400 offspring, and 20 of them have recombinant phenotypes. What is the recombination fre
sp2606 [1]

Linkage refers to the tendency of inhertance of the DNA sequences that are close together on a chromosome during the meiosis of sexual reproduction. It can be measured by the recombination frequency.

Recombination frequency describes the proportion of recombinant offsrpring produced in a genetic cross between two organisms. It is the frequency with which a single chromosomal cross over takesplace between two genes during the process of meiosis. Recombination frequency (RF) is given by

RF= Recombinants /total offspring  x 100.

In the above example, the number of recombinant offspring is 20 and the total offspring is 400. By substituting these values,

RF= 20/400 x100

= 5.

The recombination frequency for the above cross is 5.


6 0
4 years ago
1. Humans choose animals or plants to breed from based on usefulness or appearance.
laila [671]

Answer:

Plants:  Larger fruits, resistance to pests.

Animals: Produce more products, appearance.

Explanation:

Humans want plants to produce more fruits and be resistant to pests such as insects.

Animals are bred for more produce, like milk, and for their appearance for being a pet.

<em>Hope this is correct. Wishing you the best.</em>

6 0
3 years ago
What bill will have to be paid one of these days
AfilCa [17]

Answer:

There are many bills to pay with it comes to household things. There is the water bill, the electric bill, the light bill.

Explanation:

But I would say the most important one is your rent. Phew..

4 0
4 years ago
Read 2 more answers
I am trying to determine reactants going into the electron transport chain. Is this right?
irina1246 [14]

Answer:

Yes, this is correct.

Explanation:

  • In each glycolytic pathway, glyceraldehyde 3-phosphate dehydrogenase produces 1 molecules of NADH as a result of reduction of NAD+.
  • Pyruvate dehydrogenase converts pyruvate to Acetyl CoA producing 1 molecule of NADH per pyruvate oxidized.
  • In Kreb's cycle, isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, and malate dehydrogenase reactions produce 1 molecule of NADH each. Furthermore, succinate dehydrogenase reaction produces a single molecule of FADH2 per FAD reduced.
  • Since, we began with 2 molecules of glyceraldehyde 3-phosphate, we  multiply the above figures by 2 and get a total of 10 NADH and 2 FADH2.

4 0
3 years ago
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