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USPshnik [31]
3 years ago
10

You have three species A, B, and C. Assume that they form a monophyletic group

Biology
1 answer:
pishuonlain [190]3 years ago
5 0

Answer:

1 and 6 are correct

Explanation:

1. A and B are probably closely related - true, as reflected by their close gene sequences which usually represents a very close genetic relationship

2. B and C are probably closely related  - false, if their gene sequences are very different then they are probably not so closely related

3. A and C are probably closely related  - false, we know A and B are close, and B and C are very different, therefore A is probably also very different

4. B is probably an outgroup while A and C are sister taxa  - false, A and B are highly similar

5. A is probably an outgroup while B and C are sister taxa  - false, B and C are very different genetically

6. C is probably an outgroup while A and B are sister taxa - true, we know A and B share similar gene sequences, whereas C is distinct.

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Forward primer: 5'-AGTCTACTCGTAACCGGTTACC-3' Reverse primer: 5'-TAAGGCATCATGGTAACCGGTT-3' The two primers above have the melting
Jobisdone [24]

Answer:

B

Explanation:

The 3'-end of the reverse primer (3'-TTGGCCAATGG---5') is complementary to the forward primer (5'---AACCGGTTACC-3') and thus reduces the ability of the primers to bind to the targeted DNA sequence. There is possibility of hairpin loop formation or primer dimmers formation

3 0
3 years ago
Australia has invested in capital goods, so their standard of living and GDP increasing true or false
Ronch [10]

<u>Answer:</u>

Australia has invested in capital goods, so their standard of living and GDP increasing is true.

<u>Explanation:</u>

  • Capital goods are goods or objects that is used to produce other good or objects. Examples are buildings, furniture etc.,
  • GDP measures the economic activity of the country.
  • Investing in these goods has led to the "average household net-adjusted disposable income per capita as USD 32,759 a year", this increased the standard of living and resulted Australia as 'one of the highest' in the world.
7 0
3 years ago
Why can't more than one sperm enter an egg?
Y_Kistochka [10]
<span>Only one sperm normally fuses with an egg because if more than one sperm fuses, through a process called polyspermy, development of the zygote usually stops.


</span>
<span>Fertilization of one egg by two sperm is possible, but the resulting zygote is almost never viable because such a zygote would have three sets of chromosomes instead of the normal two. This condition, called triploidy, is usually incompatible with life. Those rare triploid infants that do survive to term have severe and multiple birth defects and rarely live more than a few days. </span>
3 0
3 years ago
Which is a feature of a tonic receptor? Select one: a. The action potential occurs when there is a change in response to a chang
Ierofanga [76]

Answer:

For this receptor, the stimulus begins with an explosion of action potentials.

that would be the correct option.

Explanation:

A tonic receptor is one that is activated when the action potentials were maintained over time and during the signaling of the receptor.

Tone receptors require continuous stimulation over a period of time to trigger a response and deliver it to the central nervous system.

It keeps the nervous system constantly active in the environment that surrounds it.

They are slowly adaptable, an example of these receptors are the merkel and ruffini receptors.

4 0
3 years ago
Sorry I have a slow mind... What word do weather forecasters use to describe water vapor that has gathered in a cloud?
Oliga [24]

Answer:

condensation

Explanation:

Condensation is when the water vapor becomes a cloud

please mark brainliest :)

3 0
2 years ago
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