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Amanda [17]
3 years ago
6

What was Anton van leeuwenhoek's contribution to the cell theory? ​

Biology
1 answer:
prohojiy [21]3 years ago
4 0

Answer:

He was the first to observe live cells in a sample of pond water with the use of a microscope.  

Explanation:

Anton van Leeuwenhoek is universally known as the Father of Microbiology.

He was the first person to discover a living cell under a microscope. He discovered protozoa (the single-celled organism) and named them animalcules.

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3 years ago
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>

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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>

8 0
3 years ago
A relationship between two species in which both species benefit.
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