Define DNA and explain the role it plays in cells and in sexual and asexual reproduction.

Answers

Answer 1

Answer:

it is aself replicating materialsthat is present in nearly materials for all living organisms as the main constituents of chromosome

Answer 2
I’m sorry but you can’t get me mad confused when you

Related Questions

Page No. Date What is Cocoon 2 How is it produce​

Answers

Cocoon, a case produced in the larval stage of certain animals (e.g., butterflies, moths, leeches, earthworms, Turbellaria) for the resting pupal stage (see pupa) in the life cycle. Certain spiders spin a fibrous mass, or cocoon, to cover their eggs.

The endosymbiotic theory provides an explanation for the origin of chloroplasts. Which trait of chloroplasts supports this explanation? A. Chloroplasts do not reproduce. B. Chloroplasts rely on proteins that are made by the cell. C. Chloroplasts are larger than prokaryotic cells. D. Chloroplasts have their own DNA.

Answers

Answer is Chloroplasts have their own DNA.

Chloroplasts and mitochondria are the two cell organelles which have their own DNA. This DNA is separate from the DNA which is found in the nucleus of the cell. The DNA of both chloroplast and mitochondria can replicates and both can undergoes division. The DNA of both organelles produce many proteins and enzymes required for their function.
sorry if its wrong!

Answer:

D

Explanation:

i think its D because chloroplasts can reproduce so option A is not valid they are the same size as prokaryotic cells and they donot rely on proteins that are made by the cell..but most of all they have there own DNA.

I hope this helps!!

Which strand of mRNA would be made during transcription using the DNA strand shown below?


CTG ATA


A. GAC UAU

B. GAC TAT

C. GUC TUT

D. CTG ATA

Answers

Answer:

gac uau

Explanation:

Why suspend the solution in warm water

Answers

can you specify so i can answer correctly? i’m not quite sure what you’re asking

anyone help me please I need help​

Answers

Answer:

Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive. If one of the alleles is dominant, then the associated characteristic is less likely to manifest.

Explanation:

Gangguan pada sistem pencernaan sering kali terjadi karena kebiasaan buruk, seperti pola makan yang tidak teratur dan sembarangan. Salah satu dampak dari kebiasaan buruk yaitu penyakit maag atau gastritis. Coba jelaskan oleh Anda mengapa dapat terjadi?​

Answers

Answer:

i don't know answer of this question

Answer:

Periode yang lama tanpa makanan cenderung menyebabkan refluks asam, gastritis, dan asam lambung. Jumlah cairan pencernaan yang berlebihan dapat mengikis lapisan usus Anda dan menyebabkan bisul

pls answer this for me guys

Answers

Answer:

C

Explanation:

i guess it's C






Earth's biosphere is described as?

Answers

Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Hyperscience is...
1. Genetically modifying plants.
2. quickly producing new plant varieties.
3. growing plants using new technology.
4. responding to the horticulture market.

Answers

Answer:

2

Explanation:

The place where photosynthesis occurs is the:
A. mitochondrial membranes.
B. thylakoid membrane.
C. plasma membrane.
D. ribosone.
it's not chloroplast.

Answers

Answer:

B

Explanation:

it's thylakoid membrane

Answer:

Thylakoid membrane.

Explanation:

Hope this helps!

¿Qué opinas sobre la problemática del agua en el Perú y el mundo? Cómo ciudadano responsable ¿Qué acciones estas realizando para valorar este recurso?​

Answers

El agua es un elemento relativamente escaso y por lo tanto debe ser cuidadosamente utilizado. En América Latina la distribución de las precipitaciones hace que la disponibilidad de este recurso sea desigual dentro de la región, siendo por lo tanto especialmente importante cuidarlo a fin de evitar el agravamiento de la escasez de agua potable.

El agua es fundamental para la vida ya que este elemento cumple muchas funciones dentro de los sistemas biológicos las cuales incluyen, entre otras:es un sustrato imprescindible de muchas reacciones químicas que se producen dentro de la célulaayuda a la digestión de alimentosmantiene la temperatura corporal dentro del rango aceptable para la vida, etc.

El agua potable (apta para consumo) es también fundamental para evitar la aparición y propagación de enfermedades tales como diarrea, cólera, fiebre tifoidea, poliomielitis, etc.

De acuerdo al Informe Anual del Servicio de Aguas de Lima, aproximadamente el 93% de la población peruana posee servicio de agua potable.

América Latina posee aproximadamente el 25-30% de los recursos hídricos del planeta; sin embargo, su distribución dentro de la región es desigual, con áreas totalmente desertificadas y otras que actualmente sufren inundaciones periódicas.

Esta situación se encuentra agravada por las consecuencias del cambio climático, las cuales generan una mayor inestabilidad en la distribución y estacionalidad de las precipitaciones.

El cuidado de la cantidad y calidad del agua disponible es fundamental para mantener la biodiversidad de las especies alrededor del planeta y asegurar nuestra salud, como así también para garantizar la vida de las generaciones venideras.

La ONU (Organización de Naciones Unidas) posee un programa cuyo objetivo principal es reforzar la coordinación entre diferentes países y así lograr el acceso generalizado de las poblaciones al agua potable, como así también lograr su uso responsable.

Algunos tips útiles relacionados al cuidado del agua son:Cerrar la canilla al lavar utensilios de cocinaEvitar la pérdida constante de agua en la grifería del hogarEvitar el uso excesivo de agua al ducharseCerrar la canilla al lavarse los dientes

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A person who has allergies has a compromised immune system because the body's immune system

attacks its healthy cells.

overreacts to an antigen.

steals nutrients from healthy cells.

responds to mutagens.

Answers

Answer:

overreacts to an antigen

the answer is overreacts to an antigen

Bone is flexible in nature. true or false. ​

Answers

It's totally False,because bone is hard not flexible.

So,the answer will be: False

Juan has collected a cricket. Which question can a dichotomous key help him
answer?
A. Are crickets attracted to porch lights?
B. Which species of cricket is this?
O C. Which species of cricket is the most popular?
O D. How many times do crickets chirp per minute?

Answers

What species the cricket is

The question that can be answered by a  dichotomous key is the question; Which species of cricket is this?

What is a dichotomous key ?

The term term dichotomous key has to do with the identification of a species based on its characteristics.

The question that can be answered by a  dichotomous key is the question; Which species of cricket is this?

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Which of the following is the best definition of pseudoscience?

Answers

Explanation:

a collection of beliefs or information that claims to be scientific as it is supposedly gathered by a scientific method,

which could describe the chemical reaction that is shown

Answers

Answer: dehydration of proteins.

Explanation:

Which circumstance can cause positive
population growth?
A.
The immigration rate is lower than the death rate.
© B. The death rate is higher than the birthrate.
O C. The birthrate is higher than the death rate.
• D. The emigration rate is the same as the birthrate.

Answer is birthrate D

Answers

Answer:

C

Explanation:

When the birthrate is higher than thedeathrate

How many hydrogen atoms are there in the molecule H2S04?
O A. 1
B. 3
C. 4.
O D. 2

Answers

Answer:

two hydrogen atom

Explanation:

Sulfuric Acid, H2SO4 is a chemical compound made up of two hydrogen atom, one sulfer atom, and four oxygen atoms.

What is absorption?
A. getting rid of the parts of the food that the body couldn't
use
B. absorbing nutrients into the blood stream from the food
that was eaten
C. the breaking down of the food that has entered the body
D. putting food and drinks into your body

Answers

Answer:

option(B)

Explanation:

Absorbing nutrients into the blood stream from the food  that was eaten is called absorption.

fundamental molecules produced in photosynthesis is

(a) glucose (b) amino acids (c) fatty acids (d) nucleotide​

Answers

glucose is the fundamental molecules produced in photosynthesis

plz mark me as brilliant answer

Explain how 2 polynucleotides can twist helically around each other to form a double helix of DNA?

Answers

Explanation:

The antiparallel arrangement of the two strands is what causes the twist. Because the strands run in opposite directions, they pull the sides of the molecule in opposite directions, causing the whole thing to twist around itself. Most naturally occurring DNA spirals clockwise.

Fill in the chart using the terms pseudoscience, science, and myths.

Answers

Answer:

Science is based on observations and facts.

Pseudoscience and Myths are based on opinions, beliefs, or biases.

Let me know if this helps!

Pseudoscience

Based on observations and facts: Not based on reliable data or scientific procedures. Based on opinions, beliefs, or biases: Relies on human opinion and often lacks empirical basis.

Science

Based on observations and facts: Relies on methodological research and empirical data. Based on opinions, beliefs, or biases: Draws conclusions using a scientific approach to gather facts.

Myths

Based on observations and facts: Possibly based on folklore, but not necessarily true. Based on opinions, beliefs, or biases: Often support erroneous ideas and may lack scientific basis.

Humans use science as a systematic approach to understanding the natural world. Its goal is to eliminate prejudice by using facts and observations to identify and describe underlying concepts and mechanisms. Pseudoscience lacks scientific rigor and relies on unproven claims driven by prejudices or beliefs, resulting in misunderstandings.

The basis of real science is actual data collected by experiment, observation, and application of the scientific process. Myths are important cultural myths that may not reflect scientific reality. While myths have their roots in tradition, they should not be confused with facts verified by science. Unlike pseudoscience and myths, which lack evidence-based scrutiny, science provides a solid framework for unbiased observation and testing.

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what is the answer please help

Answers

Answer:

never become laws

Explanation:

trust

three parts of stamen​

Answers

Answer:

three parts of stamen are:

anther

filament

connective .

What is meant by the term Hormone?

Answers

Answer:

hormone are cemical substance that act like molecule messanger in body.

Answer:

hormones are the chemical substances that acts like messenger molecules in the Body

Explanation:

hope that it helped you and you liked my answer

Science is not a process, but just a body of facts that
accumulates overtime.
TRUE
FALSE

Answers

Answer:

False

Explanation:

Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances.

Which of the following statements is TRUE?
A.Introns are the parts of mRNA that are translated into protein.

B.Introns do not have any specific function,

C.Human genes have fewer introns than genes of other organisms.

D.Introns are not excised during post transcriptional modification

Answers

Answer:

A. introns are the parts of mRNA that are translated into protein.

Explanation:

i hope it helps you

The DNA stands for deoxyribose nucleic acid, it has all the information required for the proper functioning of the human body.

The correct answer is B

The process of the formation of protein from the mRNA is called translation. it requires:-

RibosometRNAmRNA

The mRNA has the introns and the exons in it. Exons are the coding part of the DNA while the introns are the non-coding part and it does not have any specific functions.

Hence, the correct option is B that is Introns do not have any specific function.

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1. Mention FIVE adaptations of aquatic organisms to their habitat. B. Write out the causative organisms fro the following infections (1) cholera (ii) malaria (iii) yellow fever C. Highlight THREE characteristics of mammals.​

Answers

Aquatic animals have various structural modifications in their body to adapt to the aquatic habitats. Some of the adaptations of aquatic animals are:

Their body is streamlined and hence, they can swim easily.

They have gills as the respiratory organs.

They have fins as the locomotory organs, Various types of fins are present in fishes such as dorsal fins, pectoral fins, caudal fins etc.

The body is covered by appendages known as scales. They are meant for protection.

Some fishes have modified swim bladder with the help of which they can constantly float at a certain depth of water.

B. Cholera and Yellow Fever

explain why there is more carbon dioxide in expired than inspired air​

Answers

Answer:

Exhaled air has more carbon dioxide than inhaled Air because during respiration the food breaks down with the help of oxygen to produce Carbon dioxide and water. ... Therefore Exhaled air contains more Carbon dioxide than inhaled Air.

What is a scientific inference? (1 point)
O an inconsistency or weakness in reasoning
a conclusion made from an observation
O an opposing idea to an argument
O a critique of a scientific idea

Answers

An inference has been defined as deductions based on the facts and evidence. The scientific inference is a conclusion made from observation. Thus, option B is correct.

What is a scientific inference?

The scientific inference is a term that describes the conclusion of the experiment based on the observations and the evidence that supports the facts and data of the hypothesis.

It is a deduction and conjecture that are reached after an experiment or a procedure is performed that provides the observatory data which can be analyzed.

A scientific inference provides an informed guess that interlinks and sets the relationships between the sciences. Though they may be guesses they are based on observed evidence.

Therefore, option b. the scientific inferences are guesses made from observations.

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