What is the difference between an f donor and an hfr donor?.

Answers

Answer 1
The Hfr donor has an F factor integrated into its main chromosome, but the F+ donor does not. ... The entire F factor would have to be incorporated into the recipient cell's chromosome.

Related Questions

Describe a bacteria cell and what makes it different from eukaryotic cells?

Answers

Answer:

Bacteria is like eukaryotic cells they have cytoplasm, ribosomes, and a plasma membrane. Features that make a bacterial cell different from a eukaryotic cell the circular DNA of the nucleoid, the lack of membrane bound organelles, the cell wall of peptidoglycan, and flagella.

Explanation:

why would an ecosystem with only a few different types of organisms have a less complex food web than an ecosystem with many different of organisms

Answers

Answer:

An ecosystem with only a few different types of organisms has a less complex food web than those with many different types because in a less complex food web, only a few organisms are needed to be presented, more nutrients are absorbed and less energy is needed to complete the food web.

Which of the following is a characteristic of invertebrates

A) highly developed senses

B) backbone

C) eclosed circulatory system

D) multicellular

Answers

Answer:

A.

Explanation:

They do not have highly developer senses or surely they don't have a backbone ,every animal that have a backbone isn't an invertebrate. They don't have an enclosed circulatory system neither

If annual rainfall decreases and causes ponds in this habitat to become shallower, after many generations, how might the traits of these water lilies change?.

Answers

The water lilies may adapt to needing less water, both to drink and to live. The flowers will try to adjust to their new habitat by needing less water as there is less available.

The water lilies might adjust to requiring less water overall, even for drinking.

What is adaptation?

According to the idea of evolution, adaptation is the biological mechanism that allows organisms to adjust to new settings or to changes in the environment in which they are already living.

It is absolutely necessary for living things to be able to adapt in order to stay alive. Animals who are unable to adjust to the shifting conditions of their habitat ultimately perish. These alterations are the product of shifts in genetic make-up. The mutant genes are passed down from the animals that make it through the ordeal to the next generation.

Therefore, the water lilies might adjust to requiring less water overall, even for drinking.

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Which sentence best explains how a positive feedback loop affects climate
change?
A. As the number of plants increases, the amount of CO2 decreases.
B. High clouds have a high albedo and reflect solar energy back into
space.
C. As climate warms, CO2 increases because plants remove less of
it.
D. High precipitation results in increased plant growth, lowering CO2.

Answers

A positive feedback loop that affects climate is change as the number of plants increases, the amount of CO2 decreases.

The more trees the less CO2?

Scientists agree that one of the most effective ways to absorb part of the CO2 from the atmosphere would be to plant more trees, as they use CO2 to grow and release oxygen, this action brings benefits to the entire environment.

With this information, we can conclude that A positive feedback loop that affects climate is change as the number of plants increases, the amount of CO2 decreases.

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What is a possible pH of acid rain?
07.0
6.9
04.3
10.5

Answers

4.3 because when it comes in contact with sulfur dioxide or nitrogen oxide it makes it more acidic and the normal ph of rain is between 5.0 and 5.5.

When is passive transport used.

Answers

Answer:

When a molecule moves down its concentration gradient is it participating in passive transport

what determines how closely related 2 species are?

Answers

Answer:

Before: (Darwin did) Physical features and behavior

Now:

DNA Testing

Explanation:

Similarities are often easy to see when one looks at two organisms that evolved from a common ancestor, and until recently, looking at physical features and behavior was the only way to determine how closely related two organisms are. However, now scientists can also analyze DNA to discover how closely organisms are related. Every living creature has DNA, which has a lot of inherited information about how the body builds itself. Scientists can compare the DNA of two organisms; the more similar the DNA, the more closely related the organisms. This method can also help when looks are deceptive. One example of looks being deceptive is: The bat and the crow both have wings, and the squirrel does not. From this, one may think that bats and crows are more closely related than bats and squirrels, while the opposite is indeed the case.

Help me label these parts please

Answers

Answer:

1. Cell Body

2. Nucleus

3. Endoplasmic reticulum

4. Mitochondria

5. Dendritic Branches

6. Dendrite

7. Golgi Apparatus

8. Axon

9. Telodendria

10. Synaptic Terminals

Explanation:

I am smart like that :)

which division of the nervous system controls the radial muscles of the eye?

Answers

Answer:

sympathetic.

Explanation:

how do cellular junctions and receptors maintain homeostasis

Answers

Cellular junctions: by connecting cells to their neighbors
Receptors: allowing cells to respond to chemical messages

Which type of cell division is responsible for the sequoia tree growing bigger?

Mitosis


Meiosis


Cell Differentiation


Random Fertilization

Answers

I know I'm late but I too am taking the Phenomenon #2 Assessment (Part 1)  and want to help any future readers : )

(I pretty much gave you guys the answer but the little facts might still help, so I didn't give the direct answer in the start)

Explanation:

Mitosis: A type of cell division that results in 2 identical daughter cells.

* Process responsible for us getting bigger

*Process that repairs damaged cells

*grows new skin for us when cut

(took this out of my teachers lesson/ CC)

While...

Cell differentiation is:

Same DNA, just different genes get expressed!

This is the reason we look different are we get older! (Not the reason we grow)

^ This above are the 2 people most likely think are the answers

Good luck : )

Extra:

Meiosis:

A type of cell division that reduces the number of chromosomes in half.

Which procedure will determine if water temperature affects the weathering of sedimentary rocks?

Answers

Answer:

Sedimentary.

Explanation:

Sedimentary will determine if water temperature affects the weathering of sedimentary rocks.

Plz help! 15 points

• Would a plant be able to survive if the ground tissue was damaged?

Answers

Answer:  I don’t think so because it needs the carbohydrates produced by the plant.

Explanation: No because the soil would be contaminating the soil until it reaches a point where the soil begins to tear and cracks will open in the soil and the air will be polluted, it would be an uninhabitable planet

anthropologists are suspicious of naturalizing discourses because

Answers

-They ignore historical evidence showing how present-day arrangements contrast with earlier social arrangements

- They direct attention away from current social inequalities, insisting that these inequalities are so deeply rooted that attempting to change them would be impossible.

-They ignore variations in social arrangements in other present-day societies, which show that social life may be organized differently

Anthropologists are suspicious of naturalizing discourses because they ignore historical evidence showing how present-day arrangements contrast.

What are the roles of anthropologist?

An anthropologist is a person engaged in the practice of anthropology. Anthropology is the study of aspects of humans within past and present societies.

Creating research plans that address underrepresented topics. Executing research protocols that adopt a holistic study design. Promoting the co-creation of information by employing participatory approaches.

Anthropologists, people who conduct anthropological studies, identify aspects of being human as their focus. For example, one anthropologist might explore mating rituals of a small tribe in New Guinea.

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Some researchers argue that the robust australopiths should be classified in a separate genus. What is that genus called

Answers

Answer: Researchers argue that robust Australopithecines should be classified in a separate genus called Paranthropus.

Explanation:  The "robust" australopiths are a group of fossil hominins that existed in East and southern Africa between approximately 2.5 and 1.4 million years ago (Ma). They are referred to here as members of the genus Paranthropus, though considerable disagreement about their proper taxonomy persists. (credit to the internet)

what are the effects of pollution on the atmosphere?

Answers

Answer:     This can kill crops or reduce their yield. It can kill young trees and other plants. Sulfur dioxide and nitrogen oxide particles in the air, can create acid rain when they mix with water and oxygen in the atmosphere.

Explanation:

A cell uses active transport to move sodium ions out of the cell. Why does the cell use active transport instead of diffusion to move sodium ions out of the cell?.

Answers

Answer:

A cell uses active transport because active transport uses energy going from high to low (against the concentraion gradient) while diffusion (passive transport which doesn't use energy) goes from low to high.

Explanation:

The cell uses active transport to move sodium ions out of the cell instead of diffusion because they are moved against a concentration gradient.

WHAT IS ACTIVE TRANSPORT?

Active transport is the type of transport in which substances are moved from a region of higher concentration to a region of lower concentration.

This means that substances are moved against a concentration gradient, hence, requires energy in form of ATP to take place.

The cell uses active transport to move sodium ions out of the cell instead of diffusion because they are moved against a concentration gradient.

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do liver cells undergo meiosis?​

Answers

Answer:

In liver development, most Mono hepatocytes undergo the conventional cell cycle to replicate. However, some of them undergo mitosis without cytokinesis to produce Bi hepatocytes.

Explanation:

Give an example of an attitude which you have observed between people in different levels of society.

Answers

Explanation:

I have been seen a person who always want eat a food that I have never heard it before when I am born. he cherish it Soo much

Armstrong's first footprint is still visible on the surface of the Moon. We know this even
though no one has returned to the moon in over 30 years. How can we know this for sure?

Answers

Answer: there is know air in space so that being said nothing could damage the footprint (no weathering in space)

Explanation:

what's makes up the brain and a brief explanations​

Answers

Answer: I'm not quite sure what you're asking but...

Explanation: The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature. Other areas of the cerebrum enable speech, judgment, thinking and reasoning, problem-solving, emotions and learning. Other functions relate to vision, hearing, touch and other senses.

Why is the muscular system needed for respiration to occur in the human body?

Answers

Answer:

Explanation:

the muscular system is needed for respiration to occur in the human body because the diaphragm is a muscle iteslf and the diaphragm inflates the lungs

________ is the passing of traits from generation to generation while _________ is the scientific study of traits being passed from generation to generation.

Answers

Answer:

Heredity,Genetics

Explanation:

Heredity is the passing of traits from generation to generation while Genetics is the scientific study of traits being passed from generation to generation.

Traits are the defining characteristics that are passed from generation to generation, and genetics is a branch of science to study heredity.

What is genetics?

Genetics is the branch of science to study heredity and evolution, how genes originate and what changes occur over time.

Genes are segments of DNA upon chromosome code for protein, in the genetics gene is the major area of study. How a gene can be transferred from parents to a daughter and lead to heredity can be studied.

Heredity depends on the gene responsible for a particular trait and character, during evolution, there would be changes occur at the genetic level which leads to variation among species.

Therefore heredity is to pass traits, and the scientific study of it is genetics.

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2.4 Explain the safety measures that one should consider when participating in physical education activities. ​

Answers

One should consider: proper clothing and shoes-so not to get injured. Knowledge of equipment and activity—one should know how to use all equipment and know how to play the games/activity so not to hurt themselves or others. Proper hydration and nutrition before hand-so not to get dehydrated or dizzy or sick and safety og equipment and location-check for broken items and discard, check environment for hills, holes, sticks, traffic, etc.

Location Six: Select two events that you predict will be observed. If I explore two oceanic plates at a transform boundary, then I will observe: __________________________faultsocean formationmountainsvolcanoesisland chainsseafloor spreading

Answers

Answer: Volcanos and faults

Explanation:

EZ

Where is the center of the cold air mass? ( name the region of the state near the center)

Answers

The center of this air mass is a high pressure center located in northern Montana

Which gas is produced as a result of cellular respiration.

Answers

Answer:

Carbon dioxide

Explanation:

Which best describes convention

Answers

Answer:a way in which something is usually done, especially within a particular area or activity.

Explanation:"the woman who overturned so many conventions of children's literature"

When testing the effect of light on flowering patterns of plants, temperature would be considered a?
A.independent variable
B. dependent variable
C. constant

Answers

Answer: Independent Variable

Explanation: Already explained this one in another post.

A. Independent variable
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