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vodka [1.7K]
3 years ago
13

While working with heat in the laboratory, which of the following should you do?

Biology
1 answer:
Ratling [72]3 years ago
4 0
I say it would be B. because it is the safest for you. You should never reach across a flame because of the risk of catching on fire. And never leave a flame unattended. Heating a liquid in a closed container could be dangerous as well because it heats fast and could go wrong. I hope this helps!
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Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro
Anit [1.1K]

Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

AA x Aa

  • F1 genotypes: 1/2 AA, 1/2 Aa
  • F1 phenotypes: all A
<h3 /><h3><u>Gene B</u></h3>

BB x bb

  • F1 genotypes: 1 Bb
  • F1 phenotypes: all B
<h3 /><h3><u>Gene C</u></h3>

Cc x Cc

  • F1 genotypes:  1/4 CC, 2/4 Cc, 1/4 cc
  • F1 phenotypes: 3/4 C, 1/4 cc

We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
6 0
3 years ago
If 2 atoms of gold have the same properties, does an electron have the same properties of gold
klasskru [66]

Place mercury in the reactor. After a large amount of work, only a tiny portion of gold is created.

Decontaminate the resulting gold. This is harder than it sounds because you can't separate out non-radioactive gold from radioactive gold using purely chemical methods.

It should be obvious from this process that it currently costs much more money to create non-radioactive gold than you could ever earn by selling the gold. Creating gold from other elements is currently an expensive laboratory experiment and not a viable commercial activity. Perhaps technology will improve enough in the future to make creation of gold in nuclear reactors a profitable economic enterprise.

6 0
3 years ago
Which life cycle stage is found in plants but not animals?
Digiron [165]
The life cycle stages of a plant would be seeds → germination→growth→maturity→pollination→fertilisation→seeds   etc etc.

so I would say the life cycle stages not found in animals would be either pollination or germination.
4 0
3 years ago
. For thermometers to read temperatures correctly, they must be
allsm [11]

anwser:

A

Explanation:

calibrated to test and see if the temperature correctly

4 0
3 years ago
Read 2 more answers
cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you noti
Margaret [11]
<h2>Genetic code is (nearly) universal in evolution</h2><h3>Explanation:</h3>
  • It determine whether hair length is heritable, The genetic code is discretionary, at any rate of extent. The way that all life forms share a solitary genetic code is because of their basic ancestry. Development represents the solidarity and diversity of life  
  • This is because a genetic code shared by diverse life forms gives significant proof to the regular starting point of life on Earth. That is, the numerous species on Earth today likely developed from a tribal living being in which the genetic code was at that point present. Since the code is fundamental to the capacity of cells, it would will in general stay unaltered in species across ages, as people with critical changes may be not able to survive.
7 0
3 years ago
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