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denpristay [2]
3 years ago
14

What determines the viscosity of magma m b

Biology
1 answer:
Alex_Xolod [135]3 years ago
3 0

Answer:

Viscosity is fluid resistance. Viscosity depends primarily on the magma composition and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with higher SiO2 concentration in the magma). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the magma).

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Two genes on chromosome 7 of corn are identified by the recessive alleles gl (glossy), which determines glossy leaves, and ra (r
Alchen [17]

Answer:

recombination frequency = 4.5% or 4.5mu

Explanation:

to calculate the frequency of recombination between these genes

we have,

recombination frequency = [ number of recombinnants/total number of offsprings) x 100

total offspring  = 88 + 103 + 6 + 3

total offspring =  200

Gl ra 88............................ parent

gl Ra 103.........................parent

Gl Ra 6..................................... recombinant

gl ra 3................................................ recombinant

recombination frequency = {6+3/88 + 103 + 6 + 3} x 100

recombination frequency = 9/200 x1oo

recombination frequency = 0.045 x 100

recombination frequency = 4.5% or 4.5mu

3 0
3 years ago
Which of these is NOT characteristic of chordates?
Leya [2.2K]
The option which is not a characteristic of chordates is chloroplasts in their cells.
Chordates do have a dorsal supporting rod (vertebrates are types of chordates - they have a spine), a dorsal hollow nerve cord (within the spine), and pharyngeal pouches. However, they do not have chloroplasts, because that is a characteristic of photoautothropic eukaryotes, which chordates certainly are not.
8 0
3 years ago
In blue-white screening, what do blue colonies represent?
Basile [38]

Answer:

The correct option is : cells containing empty plasmid vectors

Explanation:

The blue-white screen is a technique which involves the rapid identification of the recombinant bacteria in a vector-based molecular cloning experiment. In this method, a DNA ligated vector is inserted in a host cell which is viable for transformation and grown in presence of X-gal.    

The cells that are transformed with the vectors having the recombinant DNA produce the white colonies. Whereas, the cells transformed with empty vector i.e. the non-recombinant plasmids, produce the blue colonies.

3 0
3 years ago
What do heterotrophs use mitochondria other than to make ATP?
Roman55 [17]
Their body goes into lactic acid fermentation which is inefficient and does not produce ATP for energy.
8 0
3 years ago
Fitz loves growing flowers for his mom and friends. Her favorite flowers, roses, are red roses(RR), blue roses (R’R’), and purpl
natali 33 [55]

Answer:

They would Mix?

Explanation:

This is a really good question if they don't mix then i guess they'd have 50% chance of being blue and 50% chance of it being purple

       R         R       P  U  R  P  L  E

     _________

R  | RR    |  RR   |

     _________

R  |  RR   |  RR   |

    _________

B

L

U

E

5 0
3 years ago
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