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disa [49]
4 years ago
13

The tiny holes in the cell walls of plants that allow for the passing of materials are called the

Biology
2 answers:
Ahat [919]4 years ago
7 0
The tiny holes are called plasmodesata.
IgorLugansk [536]4 years ago
3 0
They are called plasmodesmata 
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Two genes, A and B, are located 30 map units apart. A mating between an individual homozygous dominant for both traits and one h
Westkost [7]

Answer:

35%

Explanation:

If two genes are 30 map units apart, 30% of the produced gametes will be recombinant.

A mating between an individual homozygous dominant for both traits (AB/AB) and one homozygous recessive for both traits (ab/ab) is conducted.

The F1 will be heterozygous for both genes: AB/ab.

The F1 progeny is then test-crossed to a homozygous recessive individual:

<h3>AB/ab X ab/ab</h3>

<u>The possible offspring will be:</u>

  • Parental (70%): AB/ab and ab/ab
  • Recombinant (30%): Ab/ab and aB/ab

Since 30% of all the gametes produced by the F1 individual will be recombinant, 70% will be parental. As there are two types of parental gametes, each of them will have a frequency of 35%.

<u>The offspring that will have a dominant phenotype for both traits has the genotype AB/ab with a proportion of 35%.</u>

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4 years ago
What if I told you there were trillions of tiny bacteria all around you? It’s true. Microorganisms called bacteria were some of
Andru [333]
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3 years ago
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In blood clotting, the platelets __________ to initiate the clotting process.
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There are so many examples for that in different areas, like TPBi experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpbi-cas-192198-85-9-item-282866.htm

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In which situation would new technology be most likely to cause change in a excising theory about new structures in a cell
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It should be the new technology allows detection of a structure that could not be detected previously.

Please mark me brainliest if i helped

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3 years ago
when examining cells in the lab, you notice that a particular tissue sample has 45% of the cells in the mitotic phase, how do yo
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This means that the tissues are most likely from the bone marrow or the epithelium in animals or meristem tissue in plants.  These tissues are constantly renewing themselves hence most cells are in mitosis stage. Tissues that are less likely to have such a high number of cells in the mitotic state are bone, connective, and nerve tissues.

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