The model of DNA is known as a ___________ because it is composed of two _______ chains wrapped around each other.

Answers

Answer 1
1.) double helix
2.) ladder

Related Questions

What are the steps of DNA replication

Answers

Answer:Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.

Explanation:

What phase of mitosis are the chromosomes taken from? Why?

Answers

Answer:Metaphase

Explanation:

A __ fault generally occurs at a transform boundary

Answers

Answer:

A strike-slip fault generally occurs at a transform boundary

I believe the answer is Strike-slip fault.

Choose THREE human activities that have a negative impact on the
biodiversity within Amazon rainforests.
A
captive breeding of organisms
B
change in the land-use pattern
С
exploitation of available resources
D
Introduction of conservative measures
E
introduction of invasive species
restoration of degraded land

Answers

Answer:

The 3 would be the following:

A

captive breeding of organisms

E

introduction of invasive species

restoration of degraded land

Describe the rate of division of cancer cells

Answers

Answer: God bless you

Explanation:

Cancer cells divide without a 'go' signal. Normal cells cease dividing when DNA is damaged, but cancer cells continue. 'Daughter' cells with aberrant DNA or chromosomal numbers result.

What are cancer cells?

Cancer cells are able to divide even if they have not received the signal that says "all clear." Cancer cells, on the other hand, will continue to divide even in the face of genetic (DNA) damage, which causes normal cells to cease dividing. "Daughter" cells are the end product of this process, and they are characterized by aberrant DNA as well as abnormal numbers of chromosomes.

It is possible for cancer cells to detach from the primary tumor and migrate through the circulatory or lymphatic systems to other parts of the body, where they can then form new tumors after emerging from the blood or lymph vessels. This process is known as metastasis. Cancer is a disease that is created when cells divide without control and spread into the tissues that are in close proximity to them.

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The prime factorization of blank is 24 × 5.

Answers

Answer:

80

Explanation:

Answer:

120 hope this helps :)

Explanation:

ILL GIVE BRAINLIEST!!!

please answer!

Answers

The answers are: BB Bb bb
BB Bb bb this is the answer leutinunt

clouds form by the condensation of...

A: Water vapor
B: dust or dirt
C: heat
D: rain

Answers

Answer:

a

Explanation:

clouds form when water rises as water vapor and cools and condenses into clouds

If you could see the new moon, at what time of day (roughly) would it rise?
Astronom

Answers

Answer:

Rises at sunrise, transits meridian at noon, sets at sunset.

Explanation:

I think this is the closest answer :)

How are cancer cells different from noncancerous cells?
A. Cancer cells do not contain DNA; therefore, the body cannot regulate their growth and division.
B. Cancer cells do not respond to the normal signals that shut down the cell division process.
C. Cancer cells are neither recognized nor destroyed by the body's immune system.
D.Cancer cells grow to extremely large sizes, forming tumors that block the flow of blood.

Answers

Answer:

B

Explanation:

Cancerous cells grow out of control because they do not receive the signals to stop grow. This causes tumors to form, and continue growing until treated.

Membrane potential pogil. Pls help

Answers

Uhhhh science right ?

1. What common characteristics do you notice in all the marine ecosystems? What are some major differences?

Answers

Answer:

Marine ecosystems are characterized by factors such as availability of light, food and nutrients. Other factors that affect marine ecosystems include water temperature, depth and salinity, as well as local topography. Changes in these conditions can change the composition of species that make up the marine community.

darwin found the bones of the ground sloth and what he thought was an anciet capybara in south america. he asked around, but nobody in south america has ever seen either of thise animals alive. what had happen to them?

Answers

Answer:

They're extinct

Explanation:

what are osmosis..in 50 words ​

Answers

osmosis:

Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane.

Any solvent can undergo the process of osmosis including gases and supercritical liquids.

Let us have a detailed look at the different types and effects of osmosis in detail.

Osmosis, the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane (one that blocks the passage of dissolved substances—i.e., solutes). The process, important in biology, was first thoroughly studied in 1877 by a German plant physiologist, Wilhelm Pfeffer. Earlier workers had made less accurate studies of leaky membranes (e.g., animal bladders) and the passage through them in opposite directions of water and escaping substances. 

Based on the similarities, what defines an ecosystem?

Answers

Answer:

An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.

Explanation:

Cindy/was diagnosed with anemia recently, because her physician found that her blood contains a lower count of red blood cells than normal. 4 A) What is anemia's immediate impact on gas exchange?

Answers

Answer:

The correct answer would be - a decrease in the numbers of RBCs will lead to a decrease in the ability for gas exchange in a person.

Explanation:

In the case of anemia, there would be a decrease in the number of RBCs that might be due to increased destruction of these cells, or low production of RBCs, that transporting oxygen and carbon dioxide affects the ability for gas exchange in an individual.

RBCs carry and transport oxygen to various body parts and then carry back carbon dioxide from different parts of the body to the lungs for gaseous exchange but with less number of RBCs leads to impair or decreased gas exchange in the case of anemia.

1
Which of the following is not a function of the skeletal system?
structural support
temperature regulation
protection
movement

Answers

Answer:

Temperature Regulation

what did all living thinhs on earth originally evolved from?​

Answers

every living thing on earth evolved from a single cell organism

Answer:

If correct u welcome if wrong sorry ;)

When cyanobacteria evolved at least 2.4 billion years ago, they set the stage for a remarkable transformation. They became Earth's first photo-synthesizers, making food using water and the Sun's energy, and releasing oxygen as a result.

What is the complementary sequence of TACGTATGAAAC?

Answers

Answer:

ATGCATACTTTG

Explanation:

The letters are alternate of each other.

T-A

A-T

G-C

C-G

ATGCATACTTTG is the compementary sequence

During a fierce storm a large number of tall trees on a island are uprooted by the wind and die most of the trees on the islands are now short trees and produce seeds that grow into short trees what concept is shown in this example

Answers

Answer:

Natural Selection

Explanation:

In all the three options namely Artificial Selection , Genetic Engineering  and Gene Splicing  there is involvement of human beings in gene modification. While in the case of natural selection genetic modification occurs through the evolutionary process through several hierarchical orders.

Anaerobic respiration produces ___
molecules of ATP.

Answers

Answer:

Anaerobic respiration produces 2

molecules of ATP.

Explanation:

Answer:

anaerobic respiration produce 2

Which of the following are ways that the respiratory system works with the immune
system to keep humans from getting sick? (Choose all that apply
1.) Coughing involves a quick contraction of the diaphragm muscle, forcing air
through the respiratory pathway, and dislodging mucus or other harmful
particles
2.) Alveoli transfer bacteria and viruses to the bloodstream to be disposed of.
3.) Cilia function like a filter, trapping dust and pollen in the nose,
4.) Mucus traps bacteria and viruses to be removed or swallowed.

Answers

Answer:

1.) Coughing involves a quick contraction of the diaphragm muscle, forcing air

through the respiratory pathway, and dislodging mucus or other harmful

particles

3.) Cilia function like a filter, trapping dust and pollen in the nose,

4.) Mucus traps bacteria and viruses to be removed or swallowed.

Explanation:

Coughing involves a quick contraction of the diaphragm muscle, forcing air out while the cilia act like a filter, trapping dust and pollen in the nose. Mucus traps bacteria and viruses to remove or swallow. So, the correct options are A, C and D.

What is Respiratory system?

The respiratory system is defined as the network of organs and tissues that help us breathe which includes the airways, lungs, and blood vessels. The muscles that power the lungs are also part of the respiratory system where these parts work together to move oxygen throughout the body and clear out waste gases like carbon dioxide.

Respiratory system works in that way with the immune system by keeping the human from getting sick by bacteria and viruses are removed or swallowed by mucus, while the cilia act like a filter, trapping dust and pollen in the nose.

Thus, coughing involves a quick contraction of the diaphragm muscle, forcing air out while the cilia act like a filter, trapping dust and pollen in the nose. Mucus traps bacteria and viruses to remove or swallow. So, the correct options are A, C and D.

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The space surrounding the nucleus of an atom contains what particles?

Answers

Answer:

An atom is composed of two regions: the nucleus, which is in the center of the atom and contains protons and neutrons, and the outer region of the atom, which holds its electrons in orbit around the nucleus.

The space surrounding the nucleus of an atom contains electrons.

Negatively charged electrons are subatomic particles that orbit the nucleus of an atom at a particular energy level, or electron shell. Compared to the other particles inside the nucleus, protons and neutrons, they are very light and small. Despite having much less mass than protons and neutrons, electrons play an important role in determining the general behavior and characteristics of atoms.

The configuration of electrons in an atom's electron shell determines its chemical structure and reactivity. Depending on how far they are from the nucleus, electrons reside in different energy levels, with the maximum number of electrons allowed in each level.

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A humpback whale is classified as a mammal while a basking shark is a fish. Which taxonomy classification are the same for a humpback whale and a basking shark

Answers

Answer:

A. Domain, kingdom, phylum only

Explanation:

The domain is Bacteria, Archaea, and Eukarya which every living thing falls under, the kingdom is every animal (now that's excluding plants and bacteria), and the phylum is a primary category in biological taxonomy especially of animals that ranks above the class and below the kingdom.  

The taxonomic classification that is the same for a humpback whale and a basking shark is Phylum.

A chordate refers to an animal (Kingdom Animalia) of the phylum Chordata.

This phylum includes all vertebrates as well as two other subphyla tunicates and cephalochordates.

Chordates are characterized to have a notochord,  pharyngeal slits (embryo development), nerve cord, and a tail.

In conclusion, the taxonomic classification that is the same for a humpback whale and a basking shark is Phylum.

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how is the habitat in arctic tundra

Answers

Answer:

Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy, and rainfall is scant. Tundra lands are covered with snow for much of the year, but summer brings bursts of wildflowers.

Make a food web for the rainforest
(No pictures needs to be written)

Answers

Answer:

Producers are bamboo trees, coconut trees, banana tree, shrubs , bromeliads e t.c.

The primary consumers are monkey, grasshopper, bats, macaws, butterflies, sloths.

Secondary consumers are iguanas, vampire bats, frogs.

Tertiary consumers are Jaguar and python.

Decomposers are insects, microorganisms.

Explanation:

Food webs refers to association that comprises of interconnections of several food chains or what organisms feed on or live on in an ecological community. Food web comprises of producers, primary consumer, secondary consumer , tertiary consumer and decomposers.

Urea diffused in all regions of the filter during countercurrent flow. Using what you know about the sizes of urea and potassium, which graph shows what would happen to potassium during countercurrent flow?

Answers

Answer:Diffuse in all regions of the filter

Explanation:The potassium level in dialysis is often lower than usual because of incomplete equilibration

3. Which tool do scientists use to classify plants that is based
on a series of paired characteristics?

observation power

dichotomous key

sketch book

plant classification

Answers

dichotomous key is the answer to your question
Dichotomous key is the answer

When a cow is cloned to make exact copies of the adult cow, what is this called?
A) embryonic cloning
B) therapeutic cloning
C) SCNT

Answers

...........The answer is A

Used oll should be
A) O Poured onto grass
B) O Recycled
C) Placed in a container with antifreeze
Shops must follow si
DO Poured down the drain

Answers

Answer:C) Placed in a container with antifreeze

Shops must follow si

Explanation:

hope this helps!!!

love: Deku <3

Answer

C, placed in a container with antifreeze

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