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leonid [27]
3 years ago
15

How are a fish and frogs life cycle the same?

Biology
1 answer:
Vlada [557]3 years ago
8 0

They both start out as nematodes!  

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A hormone imbalance may occur if this feedback system has trouble keeping the right level of hormones in the bloodstream, or if your body doesn't clear them out of the bloodstream properly.
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What kinds of bacteria are spherical
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3 years ago
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For the same cross: BbTt x bbTt a. Using the Probability Method illustrated in lecture, break the complex two-gene cross into tw
shutvik [7]

Answer and Explanation:

cross: BbTt x bbTt

<u>Cross for B gene</u>

Parental ) Bb   x   bb

Gametes) B   b   b   b

Punnet square)  B     b

                  b     Bb    bb

                  b     Bb    bb

F1) Genotypic proportion: 2/4=1/2 Bb : 2/4=1/2 bb

     Genotypic ratio 1:1

     Phenotypic proportion: 2/4=1/2 B- : 2/4=1/2 bb

     Phenotypic ratio   1:1

<u>Cross for T gene</u>

Parental ) Tt   x   Tt

Gametes) T  t     T   t

Punnet square) T       t

                  T     TT    Tt

                  t      Tt    tt

F1) Genotypic proportion 1/4 TT

                                          2/4 Tt

                                          1/4 tt

     Genotypic ratio  1 : 2 : 1

      Phenotypic proportion: 3/4 T-

                                              1/4 tt

     Phenotypic ratio 3 : 1

3 0
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Explain three ways in which red blood cells are adapted to their function​
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Answer:

Red blood cells are adapted to their function by:

1) They contain haemoglobin - a red protein that combines with oxygen. they have no nucleus so they can contain more haemoglobin.

2) They are small and flexible so that they can fit through narrow blood vessels.

3) They have a biconcave shape (flattened disc shape) to maximise their surface area for oxygen absorption.

Hope this helps! :D

8 0
3 years ago
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