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3 years ago

What is a cell made of?

Biology

1 answer:

FinnZ [79.3K]3 years ago

7 0

Two thirds of a cell is water the rest of the mixture of molecules ,manly protein , lipids and carbohydrates

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If purple flowers is dominant over white flowers , what is the most likely phenotype in the offspring

denpristay [2]

Answer:

THIS IS MY ANSWER

Explanation:

MARK ME AS BRAINLIEST

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3 years ago

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Help‎‎‎‎‎‎‎‎‎‎ ‎‎‎‎‎‎‎please...........................................................

Nimfa-mama [501]

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2 years ago

Which is considered a modern space exploration project rather than a historical or future project?

Llana [10]

A.) Launch a satellite

Landing on the moon takes years to figure out. (How, when, what is the purpose, etc.) Capturing an asteroid is beyond difficult and would also take years to figure out how to do so.

Launching a space probe has yet to be done BUT we have had a satellite launched (hence how we get satellite images.)

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3 years ago

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A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (

Paul [167]

Answer:

frequency of the blue (B) allele $= 0.4142$

frequency of the red (R) allele $= 0.5858$

The number of blue plants expected is $509.652$

The number of red plants expected is $1019.304$

The anticipated number of violet plants is $1441.341$

Calculated chi square value

$= 84.5320 + 42.5688 + 119.8692\\= 246.97$

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

$\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142$

Frequency of other allele

$1- 0.4142\\= 0.5858$

Chi Square test

See the attached file

The number of blue plants expected is $509.652$

The number of red plants expected is $1019.304$

The anticipated number of violet plants is $1441.341$

Calculated chi square value

$= 84.5320 + 42.5688 + 119.8692\\= 246.97$

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3 years ago

In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant o

Kipish [7]

Answer:

See

Explanation:

Given:

Brown allele (B) is dominant over the white allele (b).

It will be assumed that the alleles are not related to the X and Y chromosomes.

See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)

For both parents hetero-zygous,

P1:

Genotype: Bb (100%)

Phenotype: brown (100%)

F1:

Genotypes : BB, Bb, bB and bb in equal proportions, i.e.

BB (25%), Bb (50%), bb (25%)

Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)

8 0

3 years ago