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const2013 [10]
3 years ago
10

What do electron microscopes and transmission microscopes have in common?

Biology
1 answer:
Dmitrij [34]3 years ago
4 0

Answer:

Both require a vacuum and a compound microscope has greater magnification ability than a simple microscope.

Explanation:

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They acquire energy by consuming other species which is one level less in that corresponding trophic level.....
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Everyone in Smurfette’s family has light blue skin, which is the dominant trait for body color in her hometown of Smurf Valley.
Dmitry_Shevchenko [17]

Answer:

All their descendants will be heterozygous for the skin color, Bb, expressing blue skin.

Explanation:

<u>Available data</u>:

  • Smurfette has light blue skin
  • Her family is a "true bred" or "purebred" line.
  • She married a boy who has light yellow skin
  • blue skin is the dominant trait expressed by the B allele
  • yellow skin is a recessive trait, expressed by the b allele

Cross: Smurfette  x  Husband

Parentals)            BB     x     bb

Gametes)          B   B       b     b

Phenotypes) blue skin     yellow skin

Punnett square)

                       B        B

             b      Bb      Bb

             b      Bb      Bb

F1) 100% of the progeny will be heterozygous for the skin color, Bb

     100% of the progeny will be blue-skinned.

Note: Although the progeny is blue-skinned, they are not true-bred anymore.

7 0
3 years ago
Search around your house. Name two examples of objects that show mechanical energy.
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Electric can opener
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In a separate maddyase experiment using (Et)-10nM, the reaction velocity is measured as 3uMS. What is the substrate concentratio
Vinvika [58]

Answer: hello your question has some missing data attached below is the missing data

Applying the Michaelis-Menten Equation

An enzyme is found that catalyzes the reaction X ⇋ Y Researchers find that kcat for this enzyme is 600s^-1 and carry out several additional experiments.

answer :

substrate concentration [ x ] = 10⁻⁵ M

Explanation:

Given data:

[Et ] = 10 * 10⁻⁹ M ,  

Reaction velocity ( V₀ ) = 3* 10⁻⁶ Ms⁻¹

applying Michaelis-Menten  Equation

= 3* 10⁻⁶ = \frac{600 *10*10^{-9} * (X)  }{10^{-5} + (X) }  ,    

= ( 3 * 10⁻⁶ )( x ) + ( 3 * 10⁻¹¹ ) = ( 6 * 10⁻⁶ ) ( x )

hence the substrate concentration [ x ] = 10⁻⁵ M

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