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2 years ago

Please help me:

Biology

2 answers:

Setler [38]2 years ago

6 0

Hey yo!

the anwser is (B)

hope this helps:)

snow_lady [41]2 years ago

4 0

B.The amount of energy at the producer level will be more than the primary-consumer level but less than the secondary-consumer level.

AND

D.The amount of energy at the primary-consumer level will be more than the secondary-consumer level but less than the producer level.

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Answer:

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b) The expected phenotypic classes in the F2 are: 9:3:3:1

9/16 R-B-, 3/16 rrB-, 3/16 R-bb, 1/16 rrbb

Proportions 9:6:1.

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Explanation:

Available data:

red kernel: R-B-

brown kernel: R-bb or rrB-

white kernel: rrbb

1º Cross) RRBB x rrbb

F1) 100% RrBb (red kernels)

2ºCross) RrBb x RrBb

Gametes) RB RB

Rb Rb

rB rB

rb rb

Punnet Square) RB Rb rB rb

RB RRBB RRBb RrBB RrBb

Rb RRBb RRbb RrBB Rrbb

rB RrBB RrBb rrBB rrBb

rb RrBb Rrbb rrBb rrbb

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9/16 R-B-

 3/16 rrB-

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 1/16 rrbb

Phenotypic proportions:

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