How are identical twins different than fraternal twins (explain by discussing sperm and egg)?

Answers

Answer 1
To form identical, one fertilised egg splits and then develops into two babies with exactly the same genetic information. However to form fraternal twins, two eggs are fertilised by two sperm and produce two genetically unique children.

Related Questions

Which of these greetings is written and punctuated correctly for a personal letter?

Answers

What the answers cuh

Green plants are ___. This means that they can survive without ___.

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Answer:

Green plants are producers. This means that they can survive without animals.

Green plants are ___. This means that they can survive without ___.

Answer: Green plants. They can survive without animals. They produce their own food (sugar/glucose). Organic chemicals such as sugar, starch, fat, and proteins.

The final answer: producers


what three things are produced during the light reaction

Answers

Light reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where carbon fixation takes place. The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.

pls help this is due in monday this is a lot.....​

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Answer:

0 to around 35 shows that as the temperature increases the rate of enzyme activity also increases until a peak enzyme activity that occurs after 40 degrees this is enzymes optimum temperature. after this temperature enzyme activity decreases as the enzyme becomes denatured.

which term means a sudden and widespread outbreak of a disease within a population group or area?

Answers

Answer:

the answer is epidemic.

epidemic is smaller than pandemic

The area between the lungs, in the chest cavity, that contains the heart, aorta, trachea, esophagus, and bronchi is known as the

Answers

Answer:

The mediastinum

Explanation:

The mediastinum is a division of the thoracic cavity; it contains the heart, thymus gland, portions of the esophagus and trachea, and other structures.

Explain what happens to the egg following fertilization, make sure you use the word "cells" and "chromosomes" in your answer.

Please HELP!!! ​

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Answer:

The fertilized egg stays in the fallopian tube for about 3 to 4 days. But within 24 hours of being fertilized, it starts dividing fast into many cells. It keeps dividing as it moves slowly through the fallopian tube to the uterus. Its next job is to attach to the lining of uterus.

Explanation:

What happens during photosynthesis?
a. Autotrophs consume sugars
b. Autotrophs produce sugars
c. Heterotrophs produce ATP.
d. Heterotrophs consume ATP.

Answers

Answer:

Answer is option a. Autotrophs consume sugars

Explanation:

If you like my answer than please mark me brainliest thanks

The answer is: B - Autotrophs produce sugars.

Pls help with the second one and if you could explain why for each

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Answer:spongy tissue, because it’s the only thing without movement .

Explanation:

Which elements are essential for living organisms to survive? Check all that apply.

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Answer:

carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur

Explanation:

Answer:

Carbon, hydrogen, oxygen, and nitrogen are the most important elements. Small quantities of other elements are necessary for life. Carbon is the most abundant element in living matter.

Explanation:

hope this helps :)

what male reproductive organs are responsible for sperm production?

Answers

Answer:

The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis

Explanation:

its copied but hope it helps

HELP HELP HELP
Which of these areas control voluntary actions over internal and external intercostals muscles?
C. pons

A. Cerebral cortex

B.carotid bodies

D. medulla

Answers

the answer is going to be b

DNA ___________ is important because it ensures that when a cell divides, the two resulting cells have the same genetic code. Pleaseee help

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Answer: Replication

Explanation: When the cell is preparing to divide it will replicate its DNA so that both of the daughter cells will have a complete set of the DNA. It's like a book of instructions and the cell has to perfectly replicate it so that when it splits into two both of the new cells will have a perfectly made copy of it! Hope this helps :)

what do you waste the most of and how could you repurpose it into something that is beneficial?

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Answer:I dont know

Explanation:

You see, the explanation of me not knowing is that my brain cells have died over the years and i do not know what to do with my life:)

outside of our moon which moon in the solar system is most studied

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Answer:

Enceladus its a moon in saturn  

What type of cells do humans have prokaryotic or eukaryotic?

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Answer:

Eukaryotic cells

Explanation:

Because a Eukaryotic cell has a nucleus and membrane-bound organelles, and Prokaryotic cells DO NOT.

How greenhouse gases can lead to the formation of damaging acid rain

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Explanation:

those gases dissolve with water vapor in the air to form H2SO4 and HNO3

When it rains, these acids dissolve into rainwater and makes the pH of the rainwwater decreases

Dad has blue eyes and Mom has blue eyes. Their daughter, Bonnie, has brown eyes. Is Bonnie adopted? Use the GENOTYPE of each parent to EXPLAIN your answer

Answers

Answer:

No, Her parents carried it from other family members because brown is dominant

Explanation:

hope this helps

No, Her parents carried it from other family members because brown is dominant Dad has blue eyes and Mom has blue eyes. Their daughter, Bonnie, has brown eyes.

What is a phenotype of eye color?

The allele for green eyes is always dominant over the allele for blue eyes, which is always recessive. You will have brown eyes if at least one of your two copies is brown (Bb), which is what dominance signifies.The allele for brown eyes is the most dominant one and is always dominant over the other two alleles.

Geneticists refer to the various eye color gene variants as B for brown and b for blue, if your mom has blue eyes, your dad has brown eyes, and you have brown eyes.

Therefore, a quarter of the offspring will be born with blue eyes, and three-quarters will be born with brown eyes if both parents have brown eyes but also carry the gene for blue eyes.

Therefore, No, Her parents carried it from other family members because brown is dominant Dad has blue eyes and Mom has blue eyes. Their daughter, Bonnie, has brown eyes.

Learn more about brown eyes on:

https://brainly.com/question/29089301

#SPJ2

What does environmental quality include?

Answers

Answer:

Air and water purity or pollution, noise, access to open space, and the visual effects of buildings

Explanation:

Answer:

Explanation:

Environmental quality is a general term which can refer to: varied characteristics such as air and water purity or pollution, noise, access to open space, and the visual effects of buildings, and the potential effects which such characteristics may have on physical and mental health (caused by human activities

Which of these is the process during which some of a plant’s cells become root cells, and other cells form the plant’s stem? Choose the correct answer.



meiosis

meiosis


mutation

mutation


homeostasis

homeostasis


differentiation

Answers

Differentiation

Explanation:

Itt is the process by which cells become different cells such root or stem cells. This is found in the stem cell and all plant cells have stem cells property.

During the differentiation, the cells change in the cell morphology, membrane potential , and metabolic activity

Therefore, Differentiation is the process by which some of a plants cells become root cells and other become stem cells.

The distortion (change in shape) of enzyme molecules which occurs at high temperatures is known as

Answers

This is called denaturation. Proteins are denatured by heat.

the process of food molecules reacting with oxygen is known as what process

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Answer:

cellular respiration

Explanation:

its called cellular respiration

Which energy substance is a DIRECT source of energy used by the body to perform a multitude of functions, such as muscle contraction

Answers

Explanation:

the answer is; carbohydrates ...turn to ATP..

carbohydrate, example/ fruits, some veggies, real fruit juices..

processed sugar only works for a short time, due to the fact it is absorbed quicker than proteins.

your muscle depends on carbs, along with some proteins for energy. ATP is the end result is that cells can absorb ATP for immediate energy..Any extra is stored in adipose tissue for later use.

where does photolysis of water occur in photosynthesis

Answers

Answer:

Photolysis of water takes place in inner membrane of thylakoid.

Hope it helps u.

This part of photosynthesis occurs in the granum of a chloroplast where light is absorbed by chlorophyll; a type of photosynthetic pigment that converts the light to chemical energy. This reacts with water (H2O) and splits the oxygen and hydrogen molecules apart.

I hop this helps! :)

What's a recycling plant and how are electromagnets used there?​

Answers

Answer:

A recycling plant is a factory for processing used or abandoned materials. The different types of recycling plants include those that process glass, metals, and paper back into raw materials. Other plants focus on items that require complicated recycling processes, such as concrete, electronic equipment and various plastics.

Electromagnets are used to lift and manoeuvre the crushed up ferrous materials or again to extract them from a pile of scrap. Ferrous materials are heavy and sharp but with the strength of the electromagnets they can be lifted and moved around with ease.

Hope that helped. x

Chlorophyll creates___
and recycle oxygen.

Answers

Answer:

sugary carbohydrates

Explanation:

Chlorophyll captures the sun's rays and creates sugary carbohydrates or energy during photosynthesis which allows the plant to grow.

How does energy flow in an ecosystem

Answers

Answer:

Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.

Hope this helps you !!

The fish shown here is normally found in a pond but is being studied in an aquarium. The amount of water and salt intake and excretion is measured as the fish maintains homeostasis. What scientific
question is most likely being asked based on the information in the model?

Answers

Based on the information in the question, we can infer that the question being asked is most likely "What mechanisms do fish use to maintain homeostasis in salt-water environments?".

What is homeostasis?Homeostasis is a series of regulatory processes by which an organism maintains core values (or range of values) necessary for everyday life.

How to test the questionThe question is in the form of a hypothesis.This means that the scientist must first propose a possible solution to the question.Then, the scientist will make observations based on this question. In this case, it would seem the scientist has placed the fish into an environment that differs from its natural habitat, in order to observe how the fish maintains homeostasis.

Therefore, we can infer that the most likely question being asked is in regards to the way in which fish maintain homeostasis.

To learn more about homeostasis visit:

https://brainly.com/question/9087319?referrer=searchResults

Answer:

Im not sure but from the answer is D)

Explanation:

Since the experient is about salt, a water that is hypertonic, thus A and C are out and the question states that they are testing it on a pond, meaning it is in fresh water. Thus B are out and there is only D in this question

what are the final products of catabolic reactions?

Answers

Catabolism breaks down large molecules (such as polysaccharides, lipids, nucleic acids, and proteins) into smaller units (such as monosaccharides, fatty acids, nucleotides, and amino acids, respectively).

I hop this helps! :)

most of the oxygen transported in the blood is in what form?

Answers

Answer:

Hemoglobin I think

Explanation:

Hemoglobin molecule change the shape/conformation...

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