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egoroff_w [7]
3 years ago
8

Two genes of a flower, one controlling blue (B) versus white (b) petals and the other controlling round (R) versus oval (r) stam

ens, are linked and are 10 map units apart. You cross a homozygous blue oval plant with a homozygous white round plant. The resulting F1 progeny are crossed with homozygous white oval plants, and 1,000 offspring plants are obtained. How many plants of each of the four phenotypes do you expect?

Biology
1 answer:
olga nikolaevna [1]3 years ago
7 0

If we cross a homozygous blue oval plant with a homozygous white round plant

P: BBrr  x  bbRR

The resulting F1 progeny:

F1: BbRr

If we cross BbRr with bbrr

F2: 1/4 blue round plants (250 plants) ¼ blue oval plants (250 plants)  ¼ white round  plants (250 plants) and ¼ white oval plants (250 plants).


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vlada-n [284]

Answer:

a) true

b) false

c) true

d) false

e) false

Explanation:

hi im taking ap biology and it's not my best subject but here r my reasonings:

a) inhibitors decrease the rate of reactions in general, so i would assume that increasing the number of inhibitors would decrease the overall rate or reaction

b) it's false bc allosteric inhibitors bind to a place on the enzyme other than the active site. u can see on the figures that the blue-green allosteric inhibitor is in a place other than the active site at the top

c) because allosteric inhibitors bind to a different place on the enzyme, this often results in an formational change in the enzyme. bc of this change in shape of the enzyme, this can rly prevent the substrate from binding to the active site

d) i dont think adding a competitive inhibitor will increase the number of products bc competitive inhibitors decrease the reaction rate by blocking substrates from binding to the active site :/

e) false bc competitive inhibitors do not bind to the substrates; they bind to the active sites, thus blocking the substrate from entering the active site. u can see this in the blue-green square at the top figures

8 0
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Answer:

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Explanation:

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Since natural selection depends on the changes observable in successive generations within a species,<u> in organisms with short reproductive cycles the changes promoted by natural selection could be observed most quickly</u>.

Learn more:

Natural selection and evolution brainly.com/question/312738

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