BIOLOGY HIGH SCHOOL

Gloria has a lunch account in the school cafeteria. The balance, f(x), in her account can be represented by the function f(x) = –1.50x + 40, where x is the number of meals purchased. Suppose –1.50 changed to –2.75. What does this mean in the context of the problem?A. Changing –1.50 to –2.75 means her initial balance has decreased.
B. Changing –1.50 to –2.75 means her initial balance has increased.
C. Changing –1.50 to –2.75 means the price per meal has decreased.
D. Changing –1.50 to –2.75 means the price per meal has increased.

Answers

Answer 1
Answer: "Changing –1.50 to –2.75 means the price per meal has increased" is the one among the following choices that shows the meaning in the context of the problem. The correct option among all the options that are given in the question is the fourth option or option "D". I hope the answer has helped you.
Answer 2
Answer:

Changing –1.50 to –2.75 means the price per meal has increased.

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The major light absorbing pigment in green plant photosynthesis isA)rhodophyll. B)chlorophyll. C)cytochrome a. D)cytochrome c.
The variation of kernel color in corn plants is an inherited trait. R is the dominant allele for red kernels in a corn plant and r is the recessive allele for yellow kernels. What is the probability that a corn plant with the genotype Rr crossed with a corn plant rr will have offspring with the genotype rr? Express your answer as a fraction using numerals for numbers and / for the fraction bar. Do not include spaces.
The Nobel prize was awarded to Kari Mullis for discovering a process to amplify DNA in a test tube without any cells involved. This type of process is known as a/an ___________ reaction/process.
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From where do we obtain the cells of our test subject?

Answers

I believe we obtain the cells of our test subject from DNA testing

hope it works!!
DNA testing................

In garden peas, the allele for tall plants is dominant over the allele for short plants. A true-breeding tall plant is crossed with a short plant, and one of their offspring is test crossed. Out of 20 offspring resulting from the test cross, about how many should be tall?A. 5
B. 20
C. 10
D. 0
E. 1/2

Answers

Answer: Option C

Out of the 20 resulting offspring of the test cross, 10 (50%) will be tall.

Explanation:

Let True-breeding tall plant be "TT"

Let short plant be tt

On crossing, all offspring will be "Tt"

Test cross involves the breeding of an individual with a phenotypically recessive individual. The test cross of offspring "Tt" against "tt" will then yield an equal ratio (1:1) of Tt to tt.

Thus, out of the 20 resulting offspring of the test cross, only 10 (50%) will be tall.

Final answer:

When a true-breeding tall pea plant is crossed with a short plant, all the F1 offspring will be heterozygous tall. Upon performing a test cross of a heterozygous F1 tall plant with a short plant, about half of the resulting offspring should be tall. Thus, out of 20 offspring, approximately 10 (Option C) should be tall.

Explanation:

In garden peas, the allele for tall plants (T) is dominant over the allele for short plants (t). A true-breeding tall plant has two copies of the dominant allele (TT), while a short plant has two recessive alleles (tt). When you perform a test cross between a heterozygous tall plant (Tt) and a short plant (tt), the results should theoretically yield a 1:1 ratio of tall to short offspring. Since the question states the tall plant is true-breeding and crossed with a short plant, all offspring from this initial cross would be heterozygous tall (Tt). Each of these offspring, when test crossed with a short (tt) plant, would produce tall and short offspring in a 1:1 ratio.

Therefore, out of 20 offspring from the test cross, approximately half should be tall and half should be short. So, the expected number of tall offspring would be about 10.

The correct answer to the question is option C- 10.

Learn more about Mendelian Genetics here:

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Determine the most stable secondary structure that can be formed from the RNA oligonucleotide 5’-GAGUGCGCGAGCCUCU-3’. Consider only Watson-Crick base-pairing

Answers

Complementarity is achieved through interactions between nucleobases. In the RNA, base complements are adenine - uracil (A-U) and guanine -cytosine (G-C). RNA secondary structure is achieved when two regions of one strand base pair and form a double helix.
Respecting the rule of complementarity and base-pairing, some of the bases will pair and some will not, as it can be seen on the image. The stability depends on helix length, base composition, and the number of mismatches.

If a gas is moved from a large container to a small container but its temperature and number of moles remain the same, what would happen to the pressure of the gas?It would increase.
It would be halved.
It would stay the same.
It would slightly decrease.

Answers

The pressure would increase. This can be explained by the ideal gas law where for an ideal gas its pressure, volume and temperature is a function of each other ans is expressed by an equation: PV = nRT. We first need to assume that this gas given is ideal. When the temperature and the number of moles is set to a constant value while the volume decreases, we can see that from the equation pressure and volume are indirectly proportional to each other, therefore as the volume decreases, the pressure inside increases.

Answer:

It would increase

Explanation:

Was right on edge

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Answers

natural acids because chemicals erode rocks in chemical weathering
OK so basically Chemical weathering occurs from rain and other things that are washed in with it so best choice will be to go with option C. Natural Acids.

During this process, the nucleus of a cell divides to form two nuclei that are identical to the original cell

Answers

Karyokinesis is the process by which the nucleus of the cell divides to form two nuclei that are identical to the original cell. It occurs in the M-phase of the cell cycle.

What is Mitosis?

Mitosis is a type of cell division in which the parent cell divides to form 2 identical daughter cells which contain the exact same number of chromosomes and the exact genetic content as the parent cell contain. Thus, the organisms produced are called Clones.

Mitosis consists of two divisions: Karyokinesis and Cytokinesis. Karyokinesis is the division of the nucleus of the cell into two nuclei that are identical to the original cell and cytokinesis is the division of cytoplasm.


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That process is mitosis.

Mitosis is a type of cell division in which the parent cell divides to create 2 identical daughter cells with the exact same number of chromosomes and the exact genetic content as the parent cell. I like to think of as a clone.

Make sure you don't get this mixed up with meiosis, which I a type of cell division in which the parent cell divides to create genetically different daughter cells.

Hope this helps!
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