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Contact [7]
3 years ago
13

(100 POINTS AND BRAINLYEST?? WOWWWW)

Biology
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer: the answer is really D:  because index fossils are of organisms that existed for a short period of time. When finding them in a rock layer, you can be certain that the rock layer was formed in that small-time frame.

Explanation: I took the quiz :)

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Name two minerals elements that are necessary in the synthesis of chlorophyll​
Degger [83]

Answer:

Iron and Magnesium are the elements

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2 years ago
If you count 52 purple rough corn kernels and 50 yellow smooth corn kernels how many people smooth corn kernels should you expec
Vitek1552 [10]

Answer:

17

Explanation:

In corn,

Smooth kernel (S) is dominant to rough kernel (s)

Purple kernel (P) is dominant to yellow kernel (p)

Since no information has been given about the cross here let us assume it to be a standard dihybrid cross.

The phenotypic ratio of dihybrid cross is 9:3:3:1. 9/16 will show dominant phenotype for both traits, 3/16 will show dominant phenotype for one trait, other 3/16 will show dominant phenotype for the second trait, 1/16 will have recessive phenotype for both the traits.

Here,

Purple rough (P_ss) = 52

Yellow smooth (ppS_) = 50

Both of them show dominant phenotype for one trait so they each form 3/16 of the progeny.

If the total progeny was z, 3/16*z = 50

z = (50*16)/3 = 267

Total progeny = 267 kernels

Yellow rough kernels (ppss) = (1/16*267) = 17

So approximately 17 corn kernels will be yellow and rough.

8 0
3 years ago
In ovaries the final product of meiosis are
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A. Haploid cells
Have a good day :-)

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Some common types of plants which best completes the chart
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Explanation:

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