BIOLOGY HIGH SCHOOL

What are the structures that contain the DNA of each cell? A. Ribosomes B. Golgi bodies C. Chromosomes D. Cell membrane

Answers

Answer 1
Answer: C. Chromosomes. DNA is coiled tightly to form structures we call chromosomes. Each chromosome contains a single DNA molecule.
Answer 2
Answer: C.) Chromosomes contain DNA of each cell

Related Questions

What theory says that all living things are composed of cells? It also says that cells are the basic units of structure and function in living things and that new cells come from existing cells. A. Evolution B. Boveri–Sutton chromosome C. Genetic determinism D. Cell
Apply the principles of diffusion to explain what will occur after placing a dyed sugar cube in a beaker of water
Which of the points of natural selection is also referred to as "survival of the fittest"? More offspring are born than can be supported by the environment. If too many offspring are born, they will be forced to compete for resources. Genetic variation leaves some offspring better adapted to their environment than others.
11) Changes in the DNA sequence that affect the expression of genetic information are called infiltration's replications 8) mutations transformations
Which of the following pairs does NOT represent a correct relationship?(A) glucose; polysaccharide (B) starch; polysaccharide (C) starch; carbohydrate (D) glucose; carbohydrate (E) glucose; monosaccharide

The pH of water is _____ because it contains an equal amount of H+ and OH- ions.

Answers

It's in the middle of the scale so it would be 7.0/neutral.

The answer is 7.0 (Neutral)

Match the following terms and definitions. 1. the science of the classification of organisms
2. the largest taxonomic category
3. the categories used in classifying organisms
4. a taxonomic category containing a group of similar genera

A. taxon
B. taxonomy
C. family
D. domain

Answers

(Answer 1 points 3)

A. Taxon

3. the categories used in classifying organisms.

Explanation:

In other words, we can also say that taxon is also known as a taxonomic group of any rank, such as a species, family, or class. It is a group of one or more than one different populations of an organism or the organisms viewed by taxonomists to make a system. These are the rules for naming new animals.

(Answer 2 points 3)

B. Taxonomy

1. the science of the classification of organisms.

Explanation:

A taxonomy is said to be a scheme of classification or in other words, we can also define the term taxonomy as the branch of science involved with classification, especially of organisms, systematics. Organisms are grouped together. This science of gives name, describe and classify the organisms including all the plants, animals and the microorganisms of the world.

(Answer 3 points 3)

C. Family

4. A taxonomic category containing a group of similar genera.

Explanation:

Family is the one that has been classified between order and genus. A family is also divided into the subfamilies. It is one of the eight main and important taxonomic levels. It is a primary taxonomic category of organisms ranking. This category comes on the sixth number of all the categories lies in a taxonomic group.

(Answer 4 points 3)

D. domain

2. The largest taxonomic category.

Explanation:

In the three-domain system of taxonomy, if we talk about the domain then we would define it as the superkingdom or empire. It can also be said to be as it is the highest taxonomic rank of organisms. It is a taxonomic category above the kingdom level. There are three domain such as Bacteria, Archean, and Eukarya, which we can say are the major categories of life.

Which of the following will lead to speciation? Select one of the options below as your answer:



A.
Variation in gene pool




B.
Lack of mutations




C.
Absence of natural selection

Answers

The correct answer is A. Variation in gene pool

Variations cause genetic drift and speciation while absence and lack of natural selection do quite the opposite, they keep us the same.

Which definition best describes a base?A. A substance in a solution that releases hydrogen ions and lowers the pH
B. A substance in a solution that captures hydrogen ions and raises the pH
C. A substance in a solution that releases and captures hydrogen ions, keeping the pH the same
D. A substance in a solution that provides color over a narrow range of pH

Answers

The correct answer is:

B. A substance in a solution that captures hydrogen ions and raises the pH

Explanation:

Bases are substances that, in aqueous solution, release hydroxide (OH−) ions, are smooth to the touch, can taste bitter if an alkali,[1] change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, increase particular chemical reactions (base catalysis), receive protons from any proton donor, and/or contain completely or partially displaceable OH− ions

Answer:

B

Explanation:

Ap3x

Telomerase Indicate whether each of the following statements about telomerase is true or false. 1. With each cell division, chromosomes gradually shorten in the absence of telomerase activity. TrueFalse 2. During embryonic and childhood development in humans, telomerase activity is relatively low compared to the level of activity in most somatic cells of an adult. TrueFalse 3. Cells that divide frequently tend to have relatively low levels of telomerase. TrueFalse 4. The activity of telomerase in most mature somatic cells is kept high by increasing the expression of the gene encoding this enzyme. TrueFalse 5. Mice with low telomerase activity appear to be normal for up to six generations, but they show steadily decreasing telomere length that eventually leads to nonviable offspring. TrueFalse 6. When telomerase is added to cells grown in culture, their lifespan decreases relative to controls that have no telomerase added. TrueFalse 7. Cancer cells generally have high levels of telomerase activity, which allows them to divide indefinitely without the chromosomes getting shorter and shorter. TrueFalse

Answers

Here are the answer for each item.
1. With each cell division, chromosomes gradually shorten in the absence of telomerase activity (FALSE)2. During embryonic and childhood development in humans, telomerase activity is relatively low compared to the level of activity in most somatic cells of an adult. (FALSE)
3. Cells that divide frequently tend to have relatively low levels of telomerase.(FALSE).
4. The activity of telomerase in most mature somatic cells is kept high by increasing the expression of the gene encoding this enzyme. (FALSE)
5. Mice with low telomerase activity appear to be normal for up to six generations, but they show steadily decreasing telomere length that eventually leads to nonviable offspring. (FALSE)
6. When telomerase is added to cells grown in culture, their lifespan decreases relative to controls that have no telomerase added. (FALSE)
7. Cancer cells generally have high levels of telomerase activity, which allows them to divide indefinitely without the chromosomes getting shorter and shorter. (TRUE).

The normal result of conception is a single cell that contains _____ pairs of chromosomes. 8 14 23 29

Answers

We all have 23 pairs of chromosomes.
Other Questions
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A researcher conducted an experiment to test whether exposure to high levels of UV radiation (that seen when ozone depletion is at its peak) harms human skin cells. He exposed human skin cells growing in Petri dishes to this level of UV radiation and determined the percentage of cells in each dish that died. He found that 30% of the cells died after 3 days of exposure to high UV radiation exposure. Why would it be unreasonable to conclude that this level of UV radiation exposure is harmful to these cells?
Brad and Matt are working in the lab. They noticed that when they mixed two dilute solutions together, the reaction between them happened very slowly. The following are Matt's suggestions. Which one would BEST help to increase the rate of this reaction?A) increase the concentration of both solutions B) decrease the concentration of both solutions Eliminate C) increase the concentration of one of the solutions D) decrease the concentration of one of the solutions
What happens when there is an error with the cell cycle?