Limestone is a sedimentary rock. True False

What hydrogen bonds are between adenine and thymine

masya89 [10]

Answer:

Cytosine

Explanation:

Cytosine can form three hydrogen bonds with guanine, and adenine can form two hydrogen bonds with thymine.

6 0

3 years ago

What type of tissue shortens to perform its function?

solmaris [256]

Answer:

The muscle tissue shortens to performs it's function which we know as muscle contraction

8 0

3 years ago

Question 2 Radioactive tracers are useful in ____.

Mazyrski [523]

Radioactive tracers are useful in determining medical problems.

Answer: B. Determining medical problems.

Explanation:

Radioactive tracers are comprised of carrier particles that are reinforced firmly to a radioactive atom. These bearer particles shift incredibly relying upon the motivation behind the scan.

A few tracers utilize atoms that associate with a particular protein or sugar in the body and can even utilize the patient's very own cells.

Examples of radioactive tracer are - tritium, carbon-11, carbon-14 and oxygen-15 and so forth. Radioactive tracers are either injected in the body intravenously or orally.

4 0

3 years ago

What must a cell produce to make large amounts of particular protein?

Mkey [24]

Generally large amounts of messenger Rna {mRna} that code for the particular protein.

5 0

3 years ago

Read 2 more answers

Mitosis is a type of cell division. organize the images below to show the steps of mitosis.

barxatty [35]

Answer:

The correct order is F, E, C, G, H, A, D, and B (look at the image in the attached files)

Explanation:

Interphase: Stages G1, S, and G2. At this point probably, the chromatin duplication has already occurred, but it is still lax or dispersed. It has not condensed yet. Two pairs of centrioles are outside the nucleus (FIGURE F)
Prophase: Centrioles move forward to the opposite poles of the cell. Chromatin is condensed and individual chromosomes are now visible. The nuclear membrane breaks into many pieces. Spindle apparatus -microtubules- forms. (FIGURE E)
Metaphase: The polar and the kinetochore fibers drive each individual chromosome to the equatorial plane. This stage ends when all the chromosomes are completely arranged in the medial area. (FIGURE C)
Anaphase: Sister chromatids separate and move to the opposite poles of the cells, driven by the microtubules. In each pole, there are a pair of centrioles (FIGURE G and H).
Telophase: The nuclear membrane rearranges. Each sister chromatid becomes now a new chromosome. There is a pair of centrioles outside each of the nuclei. (FIGURE A)
Cytokinesis occurs at the end of the cell division. The rest of the cell is divided into two new daughter cells. Each daughter cell is an identical copy of the other cell, with the exact same genetic material (FIGURE D).
Decondensation of the genetic material of each new cell (FIGURE B).

5 0

2 years ago