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3 years ago

How are 3-D printers useful in studying evolution?

1 answer:

7 0

They can use 3d printers to make identical copies of things such as fossils. The reason why that is useful is because REAL fossils are rare. So they can still study the traits and characteristics of the fossils without having to buy a fossil or find one because they are rare and they cost a lot

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In corn, the allele A allows the deposition of anthocyanin (blue) pigment in the kernels (seeds), while aa plants have yellow ke

lara31 [8.8K]

Answer:

Explanation:

As given,

Allele A for blue anthocynin.

aa for yellow kernel;

at second locus;

W produce smooth kernel,

ww for wrinkled kernel;

Parents as given are: AaWw and aaww

Progeny are:

blue smooth ( AaWw)= 1447;

blue wrinkle (Aaww)= 169;

yellow smooth (aaWw)= 186;

yellow wirnked (aaww)= 1510

Recombinant progeny are 169+ 186= 355

non- recombinant progeny are = 1447+ 1510= 2957

so recombination frequency (RF)= 346/2957×100= 12.0054%

So a and w are linked genes.

They are 12 mu far away from each other.

b) Blue smooth parent= AaWw.

c) Aaww crossed with aaWw

progeny are= AaWw, Aaww, aaWw, aaww,

They all are produced in same proportion =0.25% or 1/4.

5 0

3 years ago

If round pea shape is dominant to wrinkled pea shape, which of the following genotypes

Kobotan [32]

Answer:

C. rr

Explanation:

The dominant genotype will always be denoted by the capital version, or in this case R.

The round pea shape is dominant to the wrinkled pea shape, which means that, in the Punnett Square, the combinations of RR, Rr, rR, will all come out to be round pea shape.

The last box, rr, would be the one that gives the wrinkled phenotype.

In this case, by ratio, wrinkled phenotype show up 25%

by ratio, round phenotype show up 75%.

7 0

3 years ago

Is a owl a specialists or generalists

Troyanec [42]

The owl is a generalists creature/species because it is able to thrive in a wide variety of environmental conditions and can make use of a variety of different resources (for example, a heterotroph with a varied diet). A specialist species can only thrive in a narrow range of environmental conditions or has a limited diet. Most organisms do not all fit neatly into either group, however. Some species are highly specialized (the most extreme case being monophagy), others less so, while some can tolerate many different environments. In other words, there is a continuum from highly specialized to broadly generalist species.

3 0

3 years ago

A cell with three pairs of chromosomes has the genotype Aa Bb Cc, with each locus on a different chromosome. If this cell were t

denis-greek [22]

Answer:

Same type of daughter cells

Explanation:

The process of mitosis form two daughter cells with the same number of chromosomes but the meiosis form four different daughter cells with a different number of chromosomes.

Also, the meiosis produces genetically different cell as the meiosis I is marked with the crossing over events which produces different genetic combination in the cell. In the given question, since the cell divides with the mitosis therefore the daughter cells will be produced with the same type of genetic material.

Thus, the same type of daughter cells is correct.

5 0

3 years ago

1.Name one living (biotic) and non- living (abiotic) means of seed dispersal

jek_recluse [69]

Answer:

1.abiotic- air and biotic-birds

2.producing delicious and good fruits for animals protect and help them to spread. delicious food attract animals like birds and other animals who are feed on them. when they eat the fruits and the seeds pass by unharmed. these way the seed dispersal occur of a plants.

6 0

3 years ago