What happens if new information is discovered, or new evidence presented that is different from what is already known?

1 answer:

Alex3 years ago

3 0

I believe at such a point the new information is assessed and the original information is reassessed. Scientists perform many tests and research both sets of information in an effort to find out where, how and why, these ideas differ and , if possible, how they can be interrelated. Considering that science is not rigid and can be changed as new information is presented and new things discovered.

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A student decided to investigate the relation of height to resting heart rate. The student determined the resting heart rate of

frez [133]

Air temperature: When temperatures (and the humidity) soar, the heart pumps a little more blood, so your pulse rate may increase, but usually no more than five to 10 beats a minute.Body position: Resting, sitting or standing, your pulse is usually the same. Sometimes as you stand for the first 15 to 20 seconds, your pulse may go up a little bit, but after a couple of minutes it should settle down. Emotions: If you’re stressed, anxious or “extraordinarily happy or sad” your emotions can raise your pulse. Body size: Body size usually doesn’t change pulse. If you’re very obese, you might see a higher resting pulse than normal, but usually not more than 100. Medication use: Meds that block your adrenaline (beta blockers) tend to slow your pulse, while too much thyroid medication or too high of a dosage will raise it.

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2 years ago

A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR).

igomit [66]

So I don’t see answer choices here, but your answer is 50% of the offspring will be homozygous dominant with RR, and 100% of them will carry a homozygous dominant gene of Rr

If you take the two sets and put them into a punnett square, it would look like this (image attached):

When the two sets of alleles are crossed, you would end up with half of your pairs being fully dominant (RR), and the other half being dominant while containing a recessive gene (Rr). Since there’s only one recessive gene in these pairs, it gets overridden and the pair itself is dominant.

So your answer is 50% will be homozygous dominant with RR!