Why are some genes expressed (turned on) and some genes not expressed (turned off) in a cell?

Answers

Answer 1

Answer:

some genes can funtion on their own

Explanation:


Related Questions

What is the name given to the pair of chromosomes that are the same in
which one comes from the mother and the other comes from the father?

Answers

Mother X
Father X or Y

Help!!!!!!!!!!!!!!!!!!!

Answers

with what oh d jdjdjdjdnxfjfjfnfjxx

Answer:

B. is the answer.

organisms are classified as either prokaryotes and eukaryotes.which of the following do the cells of all prokaryotes and eukaryotes contain?

Answers

Answer:

Prokaryotes contains a single chromosome and DNA whereas eukaryotes contain true nucleus and organelles.

Explanation:

The cells of all prokaryotes contains a single chromosome and a double-stranded DNA  while on the other hand, nucleus and other organelles are absent whereas eukaryotes contain true nucleus and organelles such as golgi bodies, endoplasmic reticulum, lysosomes, ribosomes, vacuole and mitochondria. True nucleus means the membrane is present around the nucleus.

Answer: A plasma membrane and cytoplasm

Explanation:

If an aquatic sponge is broken into four pieces, each piece will form into its own individual organism, resulting in four new identical sponges. Which type of reproduction is this?

fertilization

sporulation

asexual reproduction

sexual reproduction

Answers

Answer:

Asexual reproduction because it does not need another mate

Scientists have used genetic engineering to produce new types of grains and vegetables. These grains and vegetables can live in hot temperatures. This research is beneficial to humans because the research...

A. Could eliminate the need of fertilize crops
B. Make crops more resistant to pollutants
C. Show these crops are likely to be infested by insects and other pests
D. Indicates that these crops may grow in hot, dry areas

Answers

Answer:

I think its B but im not 100% sure

Explanation:

Cystic Fibrosis is an autosomal recessive disease. A carrier male is married to a carrier female. What is the chance they will have a child with cystic fibrosis?

0 percent
25 percent
50 percent
75 percent
100 percent

Answers

Answer:

25 percent

Explanation:

25 percent 25 percent

What’s the difference between metals and nonmetals?

Answers

Answer:

Explanation:

metal are solid metals in room temperature, and several nonmetals are gasses at room temperature.

hope this helps

In what part of the cell does fermentation occur?

Answers

Answer:

cytoplasm

Explanation:

As with glycolysis, fermentation takes place in the cytoplasm of the cell. There are two different forms of fermentation—lactic acid fermentation and alcoholic fermentation.

How did Darwin's discoveries lead to the theory of evolution

Answers

With Darwin's discovery of natural selection, the origin and adaptations of organisms were brought into the realm of science. The adaptive features of organisms could now be explained, like the phenomena of the inanimate world, as the result of natural processes, without recourse to an Intelligent Designer.

Why do you think having many different species is important to humans?

Please write a creative answer! ;v;

Answers

Answer:

.

Explanation:

Biodiversity is important to humans for many reasons. ... Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services

How do the nutrients necessary for plant growth get into the soil?
O The soil absorbs sunlight.
Water filters through the soil.
Organic matter is decayed in the soil.
The soil is exposed to air.

Answers

I believe it is Organic matter is decayed in the soil because plants get their nutrients from animal waste and dead organisms.

biological fitness definition

Answers

Biological or "Darwinian" fitness is being able to live long enough to reproduce and keep the population or species alive.

Consider the stage of cellular respiration that is shown in the diagram.

A diagram shows the conversion of a glucose molecule to 2 pyruvic acid molecules. In this process, 2 A T P form 2 A D P, 2 N A D produce 2 N A D H, and 4 A D P produce 4 A T P.

What is the net ATP gain at this stage of cellular respiration?
2
4
32
36

Answers

Answer:

A

Explanation:

Got it right on edge

Answer:

2

Explanation:

Starch and glycogen are types of this macromolecule.
a. carbohydrate.
b. nucleic acid.
c. lipid.
d. protein.

Answers

A. Carbohydrates

There are organic compounds like: sugars, starch, cellulose and etc.
Correct answer would b A.

Help! Find another text that occurs in the same time period as Hour Of The Bees. It may be a movie, poem. How do the two texts reflect the same time period? Provide textual evidence (evidence from your text) from both texts to support your response.

Answers

Answer:

Poisson Process. A Poisson Process is a model for a series of discrete event where the average time between events is known, but the exact timing of events is random.

In which way is cellular respiration similar to photosynthesis?
a. they both make G3P
b. the both involve ATP
c. the they both involve chemiosmosis
d. all of the above

Answers

Answer:

if I am correct it would be b

Explanation:

Describe how some cells make food molecules

Answers

Answer:

All living cells release energy from food molecules through cellular respiration and/or fermentation. Some cells make food molecules using light energy through the process of photosynthesis

Explanation:

basiclly light and some cells eat others

Answer:

Beginning with energy sources obtained from their environment in the form of sunlight and organic food molecules, eukaryotic cells make energy-rich molecules like ATP and NADH via energy pathways including photosynthesis, glycolysis, the citric acid cycle, and oxidative phosphorylation.

Explanation:

What are the levels of organization in the human body, starting with the cell?

Answers

Answer:

cells

v

tissues

v

organs

v

organ system

v

organism

cells make tissues that build up organs to build a organ system then organism (you,a human)

cells are the building block for life

The level of organization in the human body initiates with the cell and process in the manner which is as follows:

Cell < Tissue < Organ < Organ system < Organism.

What is the level of organization?

The level of organization may be defined as the process of sequence from the structures that are simplest in nature. It is usually defined by part-whole relationships, with things at higher levels being composed of things at the next lower level.

In organisms, a cell is the fundamental structural and functional unit of life. The collection of cells constitutes the formation of tissue which makes an organ that plays a specific function. Groups of organs form organ systems. While all cells, tissues, organs, and organ systems combine in order to form multicellular organisms.

Therefore, the level of organization in the human body initiates with the cell and processes in the manner which is well-described above.

To learn more about Multicellular organisms, refer to the link:

https://brainly.com/question/14193203

#SPJ2

what is the one thing that makes the different types of light different from one another?

Answers

Answer:

Things that make the different types of light different from wachother are their names, and the length of their wavelengths (hope this helps)

Explanation:

In the scenario above, Red hair (R) is dominant to blonde hair (r). If two parents are
heterozygous for red hair, what percentage of their offspring will have red hair and what
percentage will have blonde?

Answers

Answer:

75% of the offspring will have red hair and 25% will have blonde hair.

Explanation:

Since red is dominent but heterozygous it will be represented like Rr. Since both parents have that put it on a punnet square to get 75% red and 25% white.

Please help !!! For 10 points

Answers

This is in the sexual reproduction section
Chicken reproduce by laying eggs, Amoebae reproduce by dividing two cells

This is in the asexual reproduction
Cherry trees can be grown from cherry seeds, pineapple plants can be grown from stem settings, and hydras reproduce by budding
Hope that helped

how does natural selection affect different variation of the same species?

Answers

Answer:

Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species.

Explanation:

Through this process of natural selection, favorable traits are transmitted through generations. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.

The shadow of a tower is always directed toward the North at midday, as shown in the given figure. Where is the
tower located?
A)
North of the Tropic of Cancer or 23°N line
B)
Between the Tropic of Cancer and the Equator
South of the Tropic of Capricorn or 23°S line
D)
Between the Tropic of Capricorn and the Equator

Answers

I got c My teacher said I was Right I don’t know if it’s right for you

Answer:

A

Explanation:

Can someone pls help . I WILL MARK U BRAINLIEST !!!!

Answers

The correct answer is c
C is your answer to your question

PLEASE HELP !!!! I give lots of points !!!!

Answers

the answer to the question is 2
The answer to the question above is in fact 2

In 2019, Iceland recorded 7890 births and 123 deaths per week. What was the Population Growth Rate for Iceland?

Answers

Answer:

The Population Growth Rate was 403884 in 2019

Explanation:

Lets first calculate how many total new lives per week iceland had.

Births - Deaths = New Lives

7890 - 123

=

7767

So we have 7767 lives that are new every week.

So like a 7767 growth.

But I think the growth rate is yearly.

So with 52 weeks in a year lets multiply the amount of weeks with the new lives weekly.

7767 x 52

=

403884

The Population Growth Rate was 403884 in 2019.

I hope this helps.

If you have any questions or concerns please comment or message me. :)

rate of reproduction to sexual reproduction in plants

Answers

Answer: Asexual reproduction

For example, sexual reproduction allows for variation, but gestation usually takes a long time and it requires heavy parental input. Asexual reproduction occurs quickly, but because all of the offspring have the same genetic information, individuals are more susceptible to disease.

Explanation:

Yup that’s absolutely right
Nice

Though all humans start off the same way, give a brief explanation about what makes us all so different

Answers

Haha yep what they said


What can form volcanoes as the two plates push apart and magma is able to rise up from the
ground and form new ocean crust?
A
convergent
B
Hot spots
C
Transform plate boundaries
D
Divergent plate boundaries

Answers

Answer:a

Explanation:

Answer: the correct answer is d

Explanation:

13. What is the relationship between the strength of earthquakes and earthquake
frequency?

Answers

With an increased amount of magnitude (strength) in a earthquake, the frequency in the earthquake is also decreased and vice versa.
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