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gayaneshka [121]
2 years ago
5

What people besides scientists use dichotomous keys?

Biology
1 answer:
Fantom [35]2 years ago
8 0

Answer:

People who study food

Explanation:

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What phenotypic ratio would you expect as a result of a test cross between two individuals where 9) one that is homozygous reces
olasank [31]

What phenotypic ratio would you expect as a result of a test cross between a dihybrid organism and one that is homozygous recessive for alleles at two independent loci?

a. 3:1

b. 9:3:3:1

c. 1:1:1:1

d. 1:2:1

e. 9:4:2:1

Answer:

c. 1:1:1:1

Explanation:

When a heterozygous individual for two genes is test crossed with a double homozygous recessive individual, the progeny is obtained in 1:1:1:1 phenotypic ratio. This occurs as the heterozygous dominant individual forms four types of gametes in 1:1:1:1 ratio while the homozygous recessive individual would form only one type of gamete having one recessive allele for each gene.  

For example, a test cross between TtRr (tall and red) and ttrr (short and white) would produce a progeny in following ratio=

1 tall, red: 1 tall, white: 1 short, red: 1 short, white

Here, T= tall, t= short, R= red, r= white

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2 years ago
Which sentence describes an example of sublimation
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The common example of sublimation is shrinking of ice cubes that are not used in the freezer and conversion of dry ice rapidly into wispy clouds which vanish very soon
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What are some ways we can monitor earthquakes ?
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Scientists currently monitor underground movements, such as earthquakes and nuclear tests, using seismometers – instruments that measure the motion of those events at the Earth's surface.
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Why is it important for the skull to have holes through the bone
garri49 [273]

Answer:

it is important for the skills to have hole thought the bone because it is used to relieve pressure on the brain when fluid, such as blood builds up and starts to compress bone tissues

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2 years ago
The formation of clouds is caused by which of the following?
insens350 [35]

Answer:

condensation

Explanation:

once evaporation occurs the water vapor rises and condenses into clouds when it hits the colder air higher in the atmosphere.

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