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3 years ago

A. Most plants in the ditch will be plants with long roots.

Biology

1 answer:

nika2105 [10]3 years ago

7 0

Answer:

A. Most plats in the ditch will be plants with long roots.

Explanation:

Because the plants with shallower roots systems are easily uprooted by the rain, and there is lots of rain that year, natural selection will choose the long rooted plats. They are the "strongest" in evolution's eyes because they are less likely to die by being uprooted.

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E. coli strain B is doubly infected with two rII mutants of phage T4. 0.2 ml of a 108 dilution of the progeny is plated on E. co

Olin [163]

To Find :

The recombination frequency between these two mutations.

Solution :

Formula of calculating recombination frequency is :

$R.F = \text{Number of mutations}\times \dfrac{\text{number of k plaques} \times D.F }{\text{Volume used}}\times \dfrac{Volume'}{\text{Number of B plaques} \times D.F' }}$

Putting all given values in above equation, we get :

$R.F = \dfrac{2\times 400\times 0.2 \times 10^4}{16\times 0.1\times 10^8}\\\\R.F = 0.01$

Therefore, the recombination frequency between these two mutations is 0.01 or 1 %.

3 0

3 years ago

Which safe practice is part of using aseptic technique?

musickatia [10]

Aseptic technique is used to prevent microorganism to infect our body

One of the example of using aseptic technique is : wearing protective gloves when transferring bacteria an fungi to slides.

This action prevent those bacteria or fungi from transferring to our skin

hope this helps

4 0

3 years ago

A landscaper is shopping for landscaping materials. She wants to use materials through which water flows easily.

aalyn [17]

your answers are b., travel, & E., loosely packed soil

6 0

3 years ago

A dermatome represents the motor innervation of muscles in what area.

Anon25 [30]

Answer:

A dermatome represents the unilateral area of skin on the body that is innervated by fibers from the sensory portion of a single spinal nerve coming from the spinal cord. Each spinal nerve contains spinal roots (anterior and posterior) that come together to form the spinal nerve.

Explanation:

3 0

3 years ago

Which of the following suggests that humans have reached our carrying capacity? Humans are unable to increase food production to

Svet_ta [14]

Answer:

The human population is yet to reach its carrying capacity. However, the following will suggest that humans have reached their carrying capacity.

1. When humans are unable to increase food production which is expected to sustain a larger population.

2. When humans' use of resources, in general, is greater than resource availability.

Explanation:

The human population is yet to reach its carrying capacity. However, the following will suggest that humans have reached their carrying capacity.

1. When humans are unable to increase food production which is expected to sustain a larger population.

2. When humans' use of resources, in general, is greater than resource availability.

4 0

3 years ago