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Nata [24]
4 years ago
12

Two external features shared by amphibians and fish

Biology
2 answers:
netineya [11]4 years ago
7 0
They both have eyes and gills (:

uysha [10]4 years ago
4 0
Meat hahahabbabsbabas
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Describe two examples of experimental evidence that provide evidence that membrane proteins drift or move over time
aniked [119]

There are so many examples for that in different areas, like TPT1 experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpt1-cas-167218-46-4-item-290583.htm

7 0
3 years ago
Two autosomal genes control horn color in dragons. Pure-breedinggold-horned dragons were mated to pure-breeding silver-horneddra
horrorfan [7]

Answer:

The genetically based phenotypic  ratio for of Gold: Silver: Bronze = 9:1:6

The expected number of gold-horned dragons is = 144

The expected number of silver-horned dragons is = 16

The expected number of bronze-horned dragons is = 96

Explanation:

Given that; F2 generation consisted of:

147 gold

17 silver

92 bronze.

Total autosomal genes control horn color in dragons = 256

When we conducted the punnet square for the Pure-breedinggold-horned dragons were mated with the  pure-breeding silver-horneddragons, then intercrossed them for the F2 generation, It is seen that;

The genetically based phenotypic  ratio for of Gold: Silver: Bronze = 9:1:6

∴

The expected  number of gold-horned dragon = 256*\frac{9}{16}

= 144

The expected number of silver- horned dragon = 256*\frac{1}{16}

= 16

The expected number of Bronze-horned dragon = 256*\frac{6}{16}

= 96

Null Hypothesis = The observed ratio of Gold:Siver:Bronze

=144:16:96

=9:1:6

Observed          Expected               (OF - EF)²                 \frac{(OF-EF)^2}{EF}

Frequency         Frequency

(OF)                    (EF)

147                       144                           9                                0.062500                    

17                         16                              1                                0.062500

92                       96                             16                               0.166667

Total:                                                                                      0.291667

Since Degree of Freedom = 2

Our P-Value = 0.864

∴ Our P. Value is very high that we accept the null hypothesis

7 0
3 years ago
A (n) ____ is produced by the fusion of an egg and a sperm and it has ____.
Troyanec [42]

Answer:

zygote

hope this helps :)

4 0
3 years ago
GIVING BRAINLY! miles challenges an elephant to a drag race (straight track with no turns) using go-karts. assuming that the go
algol [13]

Answer:

B, the race would end it a tie(?)

  • Is this a trick question?
<h3><em>I hope this helped at all.</em></h3>

8 0
3 years ago
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What is the meaning of osmosis??
Nuetrik [128]
Osmosis is a process where molecules of a solvent travel through a membrane from a less concentrated solution to a more concentrated one.

7 0
4 years ago
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