How many genes make up the human genome?
four: adenine, thymine, guanine, and cytosine
23 pairs of genes
20,000–25,000 genes
3 billion genes

Answers

Answer 1

About 20,00025,000 genes make up the human genome.

GENOME:

Genome of an organism refers to the total genetic makeup of that organism. It includes all the genes present in the organism.

Genes are the basic unit of inheritance found on (deoxyribonucleic acid DNA).

A project called Human Genome Project worked to determine the sequence of the human genome and its constituent genes and it was estimated that humans have between 20,000 and 25,000 genes.

Learn more about genome at: https://brainly.com/question/20215717

Answer 2

C: 20,000–25,000 genes


Related Questions

Blood pH is sensed by cells known as chemoreceptors that send information about blood pH to the brain via cranial nerve 9 and 10. In order to correct changes in pH, the ventral respiratory group sends signals to the diaphragm to adjust its rate of contraction. These signals are sent via the phrenic nerve. What serves as the effector in this example

Answers

Answer:

The correct answer is - The diaphragm.

Explanation:

If there is a response to stimulation if a bodily tissue or organ becomes active and those of the autonomic system involves two neurons, not single neurons like motor pathways of the somatic nervous system.

In this case, the diaphragm is the organ that gets the signal in order to correct or adjust the rate of contraction in response to changes in pH level, Hence, the diaphragm is the organ that is the effector in this case.

A dependent variable is:

Answers

Answer:

the variable that is being measured or tested in an experiment

Explanation:

just fax

A dependent variable is The variable that is being measured or tested in the experiment

What is responsible for the red tide phenomenon? It is a phenomenon that usually coincides with storm surges; the name comes from the red kelp that often washes ashore as a result of rough weather. Red tide occurs in patches of water where certain species of dinoflagellates flourish. They are so abundant that the water becomes discolored and takes on a red hue. Red tides occur once a year and in accordance with the lunar cycle. The water appears red as a result of reduced levels of photosynthetic pigmen

Answers

Answer:

Red tide occurs in patches of water where certain species of dinoflagellates flourish.

Explanation:  

Red tides refer to the noticeable microalgae proliferation that can be recognized for being a big spot in the sea of a characteristic coloration. This phenomenon is caused by two microalgae groups: diatoms and dinoflagellates, both part of phytoplankton.

Red tides occur when certain environmental factors -such as temperature, light, nutrients availability, ph, etcetera- favor the overproduction of these organisms. These species produce toxins that turn to be dangerous for other animal species that feed on them.

Because these microorganisms produce pigments, their accumulation on the sea surface can be noticed as reddish, brown, or greenish color spots of variable extension.

Biology MCQs please help

Answers

MCQ:-

ANSWER:-

TissueUnicellular Prokaryote Must be correctNot include in any kingdom

Explanation:-

(1) Group of cell that work together as one to perform a single function is termed as Tissue . Then the group of tissue combine to form organs and further they combine to organ systems and further they combine to form organ system .

(2) They are unicellular green algae which belongs to family Volvocaceae of the Plantae Kingdom

(3) Hypothesis is the assumption which are taken on the behalf of the observation on small scale . They can be correct or incorrect depends on the number of observation and Hypothesis.

(4) Viruses are included in any of the kingdom because they are on the intermediate line of living and non living as they show properties of non living outside the host and properties of living inside the host

The area where the two chromatid halves of a chromosome
are joined is called a
A. centrosome
B. metaphase plate
C. centromere
D. mitotic spindle

Answers

Answer C. centromere—the region that joins the two sister chromatids
The area where the two chromatid halves of a chromosome
are joined is called a

C. centromere

Helpppppp please!!! How do membrane proteins contribute to the membrane potential?

Answers

Answer:

the answer is B

Explanation:

the answer is b

Select all that apply.
Which conditions relate to the research of van Helmont?
plant mass related only to soil
conclusions partly correct
demonstrated plant food from soil
conducted around 1400 AD.
plant mass related to H 20

Answers

Answer:

I'd say the best Answer is A & C

Explanation:

Explain what will happen to your eyes when..
a) you move in a very bright light.
b) you move in a dim light​

Answers

Answer:

For A your pupils will shrink for B your pupils will dilate.

Answer:

When you look at something that is bright, your pupil may shrink.

When you look at something dim, your pupil may get larger.

Explanation:

I think your pupil may get larger if you look at dim light because your eye may have a hard time seeing what's going on. And the opposite may happen when you look at bright light.

You observe a cell in a stained section of connective tissue. The cell has an indented nucleus and obvious cytoplasmic granules. Upon further testing, you determine that the granules contain histamine. This cell is most likely a(n) _____. Multiple choice question. mature neutrophil mast cell eosinophil B cell

Answers

You observe a cell in a stained section of connective tissue. The cell has an indented nucleus and obvious cytoplasmic granules. Upon further testing, you determine that the granules contain histamine. This cell is most likely a(n) _____.

mast cell

10 pc
Tiffany wants to know the effect of eating sugary snacks on
performance in PE class. She decides to set up an experiment to find
out. Which of the following groups of individuals would be in the
control group?
n
Students who take a PE class at their school.
Students who take a PE class and who will not be eating sugary snacks before PE
class.
Students who take a PE class and who will be eating sugary snacks before PE class.
Students taking any class at school eating any food.

Answers

Answer:

Students who take a PE class and who will be eating sugary snacks before PE.

Explanation:

The control variable (or control group) is an experimental element which is constant or unchanged throughout the course of the experiment.

The option "students who take PE class and who will be eating sugary snacks before PE" will remain unchanged and constant because the whole point of the experiment is to see the effects on students performance in PE after eating sugary snacks.

Hope this helps :)

According to the food pyramid what contains large amounts for the making of cell membranes

Answers

Fatty acids

Explanation:

Essential fatty acids need to be consumed through the diet and are important building blocks of cell membranes.

As carnes lombinas e animais de bom porte alimenticio e apropiados para "consumo"(no caso , que pode ser ingerido).

como se llama el primer cartílago de la tráquea

Answers

Answer:

cricoid cartilage

Explanation:

I think

write a short note on akaryotic cells​

Answers

Answer:

Eukaryotic cells have a nucleus enclosed within the nuclear membrane and form large and complex organisms. Protozoa, fungi, plants, and animals all have eukaryotic cells. ... They can maintain different environments in a single cell that allows them to carry out various metabolic reactions

Answer:

Explanation: Akaryocytes, also known as akaryotes or acaryotes, are cells without a nucleus. The most common type of akaryocytes are viruses. The name is derived from the Greek prefix "a-", meaning "without" and the Greek "karyo-", meaning "nut" or "kernel". ... This cell biology article is a stub.

how do plants use carbon dioxide
A.They release it as waste
B.To build proteins
C.They store it as fuel in limestone deposits
D.To produce sugars

Answers

Answer:

to build protein............

Answer:

C. To produce sugars.

HOPE IT HELPS YOU.

Forensic anthropologists are trying to determine the age of a male skeleton that has been uncovered. They conclude that he must have been between 16 and 19 judging by the measurement of his

ribs
clavicle
pelvic bone
tibia

Answers

i am pretty sure clavicle i think

select the correct answer from each drop down menu.
both anaerobic and aerobic respiration use __ to produce ATP and NADH

Answers

I dont see the answers for the drop down menu

mitosis cell division are required to form 64 cell for one cell?
a.4
b.6
c.16
d.32

Answers

Answer:

im not sure

Explanation:

How are gymnosperms in category gnetophyta usually pollinated?

A. by wind

B. by hand

C. by insects

D. by water

Answers

Answer:

by insects

Explanation:



What is a limiting factor?

Answers

Answer:

A limiting factor is anything in an environment/ecosystem that limits a population's size. They can be anything from the amount of available food, shelter, and competition.

Which of the following is an autotroph?

A. A consumer
B. A prey
C. A predator
D. A producer

Answers

Answer:

D) producer

Explanation:

An autotroph, or main producer, is a living creature that uses carbon from basic molecules like carbon dioxide to build complex organic compounds, usually with the help of light or inorganic chemical processes.

OAmalOHopeO

state two forces that occur when two metals meet together​

Answers

Answer: repel forces and attract forces

Please help me...will give braniliest

Answers

The answer is segment Segment
Segmented


Hope it helps…Good luck..Stay safe and healthy…thanks….<3333

how can so much DNA could fit inside a bacterial cell.

Answers

Answer:

The reason so much DNA could fit inside a bacterial is because the DNA are double-stranded, looped, coiled, and foleed into the cell. The DNA is tightly fitted around the nucleus.

Explanation:

Have a great summer :)

give a short introduction of carl von linnaues and rh whittakers regarding classification of living beings one major point​

Answers

Carl von Linnaeus and Rh Whittaker’s are good people

which of the following are human activities that can negatively impact ecosystems.

Answers

Answer:

Hey not sure if there is something that is supposed to be viewable but some common human activities that can impact ecosystems are, deforestaion, pollution, littering, fracking, spilling oil into the oceans.

Explanation:

Answer:

You didn't put a photo but cutting down trees of putting chemicals into the water/earth can harm ecosystems

which of these resources can not be renewed? A. Solar B. Coal C. Wind D. Biomass

Answers

Answer:

coal

Explanation:

it is a non renewable energy source

Which of the following statements support(s) the theory of the endosymbiotic origin of chloroplasts?


Chloroplasts have their own DNA, separate from the DNA in the nucleus.
They contain their own ribosomes to translate and make proteins.
They self-replicate and reproduce on their own.
They don't have similarities to photosynthetic prokaryotes.
I only
I and II only
I,II, and III
I, II, and IV

Answers

Answer:

C

Explanation:

According to the endosymbiotic idea, a few eukaryotic cells' organelles were previously prokaryotic microorganisms. Chloroplasts and mitochondria divide by binary fission.  Therefore, option (C) is correct.

What is Endosymbiotic Theory ?

According to the endosymbiotic theory, eukaryote cell organelles like chloroplasts and mitochondria descended from separate bacteria that eventually developed symbiotic relationships with other cells.

Both mitochondria and chloroplasts have circular, single-stranded DNA in addition to not having histones. Prokaryotes are the only organisms that have single-stranded, circular DNA. They contain their own ribosomes to translate and make proteins. These qualities would enable the mitochondria and chloroplasts to thrive on their own, supporting the endosymbiosis theory.

Therefore, option (C) supports the theory of the endosymbiotic origin of chloroplasts.

Learn more about endosymbiotic theory, here:

https://brainly.com/question/28498218

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answer f and g urgently
it relates to the picture ​

Answers

F is option A
G is option D
The answer to option f is A because you went from 1 pair to 2 pairs

The answer to g is D

Single-celled organisms with cell walls do not have contractile vacuoles. Suggest why.​

Answers

There is no need for one and there is no space since single-called organisms are too small.
Hope this helps and please like!!

Hello! I can't find the constants and am a little confused. Could you help me please??​

Answers

Answer:

The constants are just variables that are kept constant throughout the experiment. For example, even though the question did not mention this, we can assume that sunlight is a constant, otherwise it wouldn't be a fair experiment.

Some of the constants could be...

- Sunlight

- Water

- Room temperature

- Hours of light

- Soil quality

Let me know if this helps!

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