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aleksandr82 [10.1K]
2 years ago
9

Why is it important for scientists to be able to remove DNA from an organism? List two reasons

Biology
1 answer:
dedylja [7]2 years ago
3 0
1. scientist's can identify genetic disorders or diseases from studying DNA
2. scientists can possibly find cures for these causes by manipulating or experimenting with this DNA
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When sunlight strikes Earth, approximately _______. a. 30% is reflected back into space b. 70% is reflected back into space c. 5
Aleksandr [31]
Alright my friend basically it would be 30% our atmosphere and clouds are the one who do it if were more than 30% there would be a lot higher risk of cancer
7 0
2 years ago
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Why are indices better than simple measurements for comparing fossil specimens?
damaskus [11]

Answer:

Indices are used to study fossil specimens and compare them against each other. They are based on concept of ratio hence better than simple measurements when it comes to comparative analysis. They compensate for the problems caused by other variable factors like size or specimen.

For example, to estimate if an organism is long or round headed simple measurement of cranial length or breadth can be done and the result can be given according to the selected parameter. However some specimens will have longer breadth than length and some will have longer length than breadth. So, it is better to measure both the parameters and find out their ratio. Hence, cranial index is used which is given by: (Cranial breadth/Cranial length)*100.

8 0
2 years ago
Cinnabar colored eyes (cn) and reduced bristles (rd) are autosomal recessive genes and lobe shaped eyes (L) is an autosomal domi
Morgarella [4.7K]

Answer:

The correct genotypic notation for a wild type with phenotypic characteristics: red eyes, long bristle and round eyes will be any of CNRDll, CnRdl, CnRDl or CNRdl if c, n, r and d are capable of independent assortment and CNRDl if they cannot.

Explanation:

The eye color and bristle size is coordinated by either recessive cn and dominant CN or Cn genes. The wild type in questions has red color eyes, which is a dominant trait coordinated by CN or Cn if c and n can undergo assortment independently or just CN if they cannot. The second characteristics of the wild type is long bristle. We were told that reduced bristle is coordinated by recessive rd Gene. Then the long bristle in our specimen wild type will have dominant genotypic notification of RD or Rd, depending if r and d can undergo assortment independently. The last trait is a round eyes, which is a recessive trait controlled by recessive allele l. Therefore, the combined characteristics of red eye color, long bristle and round eyes shape of the wild type will be CNRDl or any of CNRDll, CnRdl, CnRDl CNRdl depending on the segregation pattern of c, n, r and d.

3 0
2 years ago
The theory of plate tectonics is supported by _______. The Eurasian and African plate are pushed away from the North and South A
anyanavicka [17]

Answer:

1. ridges and trenches (either answer is acceptable)

2. mid-atlanitc

3. subduction zone

4. molten

5. oceanic trenches

Explain:

6. Rocks in the ocean eventually get subducted back into earths mantle due to slab pull. New rocks form at mid-ocean ridges as ridge forces two plates to diverge.

3 0
2 years ago
Two populations of lobsters do not mate because one population lives in the Atlantic Ocean and the other lives in the Pacific Oc
Archy [21]

Answer:

1)Habitat Isolation (for lobsters)

2)Temporal Isolation (for flowers)

3)Mechanical Isolation (for snails)

4)Gametic Isolation (for clams)

5)Behavioral Isolation (for birds)

Explanation:

8 0
2 years ago
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