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Veronika [31]
2 years ago
14

12. One similarity between DNA and messenger RNA molecules is that they both contain

Biology
1 answer:
kap26 [50]2 years ago
7 0

Answer:

B

Explanation:

In fact, mRNA's bases are directly copied from DNA. However mRNA's bases are complimentary to DNA's .!

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A child has the same number of chromosomes as each of his parents. This is because the gametes that combined when that child was
RUDIKE [14]

Answer:

When a child is conceived each parent gives 23 of their chromosomes

6 0
3 years ago
Which is the result of a seasonal change? A. A bear hibernating. B. A bat capturing mosquitoes. C. Average temperatures rising e
Mekhanik [1.2K]

Answer: A. a bear Hibernating

Explanation: B has nothing to do with seasons. C is talking about yearly change. D has nothing to do with what season it is. Whereas for A, bears hibernate seasonally

7 0
3 years ago
In an experiment, a certain colony of bacteria initially has a population of 50,000. A reading is taken every 2 hours, and at th
Iteru [2.4K]

Answer:

1) Recursive definition: p_n = (50,000)3^n

2) At the beginning of the 4th interval

Explanation:

1)

The initial population of the bacteria at time zero is

p_0 = 50,000

Here we are told that the reading is taken every two hours; we call this time interval "n", so

n=2 h

And also, after every time interval n, the number of bacteria has tripled.

This means that when n = 1,

p_1 = 3 p_0

And when n=2,

p_2 = 3 p_1 = 3(3p_0)=9 p_0

Applied recursively, we get

p_n = 3^n p_0

And substituting p0,

p_n = (50,000)3^n (1)

2)

Here we want to find at the beginning of which interval there are

p=1,350,000

bacteria.

This means that we can rewrite eq.(1) as

1,350,000=(50,000)3^n

By simplifying,

27=3^n

Which means that

n=3

However, this means that the number of bacteria is 1,350,000 after 3 time intervals; therefore, at the beginning of the 4th interval.

8 0
3 years ago
I need help with this question
Zielflug [23.3K]
Colloid- C)
Emulsion- A)
Heterogeneous- D)
Homogeneous- B)

Hope this helps!!
8 0
3 years ago
Three main steps in the process of DNA replication. Name the enzymes that go with each step
Llana [10]

Answer:

The three mains in the process of DNA replication are 1 initiation 2 elongation 3 termination.

Explanation:

Enzymes those function during initiation

1 Helicase.

2 single strand binding protein.

3 Topoisomerase.

Enzymes those function during elongation

a DNA polymerase alpha

b  DNA polymerase delta

c  DNA polymerase epsilon

Enzymes those function during termination

1 Replication protein A

2 Replication factor C

6 0
3 years ago
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