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Pepsi [2]
3 years ago
15

Euglena, one of the most common flagellated protozoa, has a red despot which is important for ___. A. Detecting colors. B. Being

able to see food sources. C. Detecting light for photosynthesis.
Biology
2 answers:
muminat3 years ago
4 0
The red despot on the euglena is important for detecting light for photosynthesis and filters the sunlight to only allow certain wavelengths of light to a structure at the base of the flagellum
Nataly [62]3 years ago
4 0

Answer:

C. Detecting light for photosynthesis.

Explanation:

An Euglena is a protozoan. It has an single cell which makes it a unicellular organism. It is also has a well defined nucleus with membrane bound organelles which makes the Euglena eukaryotic in nature.

An Euglena possesses both human and plant like traits. Its human trait is that an Euglena moves with the aid of a flagella. Its plant like trait is that an Euglena has chloroplast present as one of its membrane bound organelles which its uses for photosynthesis.

Due to the presence of animal and plant like traits in an Euglena, and Euglena is both autotrophic and heterotrophic in nature.

One of the organelles present in the Euglena is its eyespot. This is a very important organelle because the Euglena uses the eyespot to detect sunlight for the process of photosynthesis. The chloroplast then traps this detected light for photosynthesis.

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Since prokaryotic cells _______________________, they have the ability to adapt faster to changing environmental conditions than
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6 0
4 years ago
A gene has 2 alleles, R &amp; B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

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3 years ago
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