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valkas [14]
3 years ago
11

When collecting samples, discuss the importance of identifying a control

Biology
1 answer:
andrezito [222]3 years ago
7 0
Consultant psychological doctor
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You cross two fruit trees. one tree produces lemons with spiky leaves and bumpy fruit. the other produces lemons with smooth lea
Triss [41]

the alleles are as follows;

L - lemons with bumpy fruit (dominant)

l - lemons with smooth fruit (recessive)

S - smooth leaf (dominant)

s - spiky leaf (recessive)

parents

one tree - lemons with smooth leaves and smooth fruits

<span>one tree - lemons with spiky leaves and bumpy fruits </span>

if parents show recessive phenotype , this means that the genotype should be recessive homozygous - ll / ss

if parents show dominant phenotype genotype is dominant homozygous or heterozygous

<span>parents    -                 S_ ll           x          ssL_</span>

<span>f1generation-</span>

<span> bumpy fruits with smooth leaves - SsLl </span>

<span>bumpy fruits with spiky leaves - </span>ssLl

<span>since offspring are bumpy fruits it should either be Ll /LL, but one parent is ll therefore for the offspring to be Ll/ll the other parent should have homozygous LL. Then the offspring will be heterozygous for fruits</span>

<span>offspring have both spiky leaves - ss and smooth leaves Ss. for offspring to have heterozygous and homozygous both, since one parent is already homozygous, the other parent should have heterozygous alleles- Ss</span>

<span>the parents genotypes are Ssll and ssLL  </span>

<span>             </span>
3 0
3 years ago
How does the thickness of the Moon's mantle compare to the thickness of its core?
Vera_Pavlovna [14]

The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.

4 0
3 years ago
What is a cloning vector? a. the laboratory apparatus used to clone genes b. the sticky end of a DNA fragment c. an enzyme that
Sidana [21]

Answer:

e) An agent, such as a plasmid, used to transfer DNA from an in vitro solution into a living cell.

Explanation:

A cloning vector is a naked DNA that can be maintained and into which a foreign DNA can be inserted. A vector needs to be small in size, have restriction sites for endonuclease enzymes and the ability to multiply and express itself at a high rate, without disrupting the host cells machinery. Perfect cloning vectors are DNA molecules from viruses, plasmids and bacterial species such as E.Coli.

5 0
3 years ago
Body cell mutations cannot be passed on to offspring. This is because body cells do not contribute genetic material to A. daught
expeople1 [14]
<span>Body cell mutations cannot be passed on to offspring. This is because body cells do not contribute genetic material to SEX CELLS. C is your answer</span>
4 0
4 years ago
Read 2 more answers
A local citizen science group is monitoring the water quality of a nearby lake. They gather water
otez555 [7]

Answer:

Greatly affect.

Explanation:

This modification to the sampling procedure greatly affect the results because timing of sampling is very important that can change the results of an experiment. The water quality of lake is different in different times of the day due to human activities. The quality of water is good in the morning when there are no or less activities of people as compared to afternoon when the human activities are very high so timing can greatly affect results of the experiment.

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