What are some exceptions to Mendel's principles?

Answers

Answer 1

Answer:

Multiple alleles. Mendel studied just two alleles of his pea genes, but real populations often have multiple alleles of a given gene.

Incomplete dominance.

Codominance.

Pleiotropy.

Lethal alleles.


Related Questions

The relationship between the remora and the shark is an example of

Answers

Answer:

Additional Information: Mutualism is the relationship where both organisms get positive results from it. An example of mutualism is the relationship between remora and shark.When one organism lives on another organism, that type of symbiotic relationship is called parasitism.

Use the image below to explain protein synthesis and the steps of transcription and translation. Hint: Use the numbers 3-11 to guide your explanation.

Answers

Answer:

Protein synthesis is the process in which cells make proteins.It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. After a polypeptide chain is synthesized, it may undergo additional processing to form the finished protein.

Explanation:

I hope this helps.

Write the energy transformation for what happens when we eat a plant.

Answers

through a process known as photosynthesis. Most of this energy is stored in compounds called carbohydrates. The plants convert a tiny amount of the light they receive into food energy.

Which diagram correctly represents a step in the normal process of human reproduction?
Key
2n = total genetic material of a human cell
n
= one half of the total genetic material of a human cell

Answers

Answer:c

Explanation:

The diagram that correctly represents a step in the normal process of human reproduction is n + n = 2n (Option C).

Meiosis is a reductional type of cell division that produces four daughter haploid cells.

These meiotic haploid (n) cells are known as gametes or germinal cells.

During fecundation, two different germinal cells fuse to produce a diploid zygote.

In conclusion, the diagram that correctly represents a step in the normal process of human reproduction is n + n = 2n (Option C).

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Q. What are the different ways in which glucose is oxidised to provide energy in the various organism ?
Q. How is oxygen and carbon dioxide transported in human beings ?​

Answers

Answer:

Hey mate......

Explanation:

This is ur answer.....

1A) There are 2 ways:-

Anaerobic Respiration.

The anaerobic respiration process takes place in the absence of oxygen.

Aerobic Respiration.

In aerobic respiration, breakdown of pyruvate takes place in the presence of oxygen to give rise to 3 molecules of carbon dioxide and water.

2A)  Oxygen is transported from lungs to body cells in the form of oxyhemoglobin . the main 2 gases exchanged are 02 & C02 . 02 is absorbed by blood capillaries from lungs alveoli by diffusion while C02 is absorbed by blood alveoli from blood capillaries by diffusion.

Hope it helps!

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because the moon has little gravity it can't _____​

Answers

Answer:

no puede ser habitado por los seres humanos

Explanation:

por la gravedad

10 POINTS AND BRAINLIEST TO FIRST CORRECT ANSWER

PLZ PLZ HELP

In what ways have members of the gray whale species been affected by efforts to protect biodiversity? Check all that apply.

They are currently endangered and almost extinct.
Their numbers have increased because of the Endangered Species Act.
Their numbers have increased mostly due to captive breeding.
They are still being hunted, and their numbers are declining.
They are an example of protecting biodiversity through the passage of laws.

Answers

(B)their numbers have increased because of the endangered species act.

(E)they are an example of protecting biodiversity through the passage of laws.

Explanation:
Grey whales are nearly 45 meters long baleen whales live in the pacific ocean. Grey whale species were on the line of extinction due to overhunting or whaling in the mid 90's but due to the protection given under Endangered Species Act, its number increased now to 25,000 and in 1994 it was removed from endangered species list. Endangered Species Act's purpose is to protect those animals and plants which are at the risk of extinction and increase their number in the wild. It is strongest law implemented to save biodiversity. So grey whale species have increased due to the Endangered Species Act which is an example of protecting biodiversity through the passage of laws.

Answer:

B and E

Explanation:

Please mark brainliest

The food chain shows the number of organisms at each level of a lake community food chain. 12,000 Water Plants 1,900 Caddisfly larva 300 Bluegill 10 Bass Why are there fewer bass in this food chain?
A They have fewer offspring.
B. They have less energy available to them.
c They are stronger and use up more energy. D. They cannot get food from the soil like plants.​

Answers

Answer:

They are stronger and use up more energy

Please help meeeeee???

Answers

Answer:

The one you chose is correct-

That is, assuming that the yellow one is the one you chose.

Carbon ______________ are processes that add carbon to the atmosphere. Carbon ______________ are processes that absorb carbon

Answers

Answer:

Carbon sources

Carbon sequestration

Explanation:

Carbon sources are regions that produces atmospheric carbon dioxide. This carbon dioxide is naturally added to the atmosphere when organisms respire, decompose, rocks with carbonate are weathered and volcanoes erupt.

Carbon sequestration is the process of taken and storing atmospheric carbon dioxide. The method helps in reducing the amount of carbon dioxide in the atmosphere which in turn reduces global climate change.

PLEASE HELP ASAP!!! thx!


Part 1: Which process does arrow A represent?
Part 2: Which type of energy transformation does arrow A represent?
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.

Use complete sentences to explain your answer. (10 points)

(LOOK AT THE PIC BELOW)

Answers

Answer:

Part 1. Process A represents photosynthesis because the solar energy is being transfered to the plant. Part 2. It represents  solar energy being treansferred. Part 3. This process is the recycling of carbon because you can see that photosynthesis, plant and animal respiration, and combustion are all occuring.

Explanation:

I'll give brainiest if correct

Answers

Answer:

Peak: -20 C

Mid-Level: -9 C

Sea-Level: 12 C

Explanation:

The higher up you go, the colder it is. This is because cold air drifts above warm air.

No Problem, please mark me as Brainliest if you will.

Answer:

i can be completely wrong but i think -9C would go at the top -20C would go in the middle and 12C at the bottom then again where im from we dont really do C so i can be completely wrong sorry if i am

3. Which of the following metals is a toxic byproduct of coal combustion?
mercury
uranium
cadmium
silver

Answers

Answer:

Mercury

Explanation:

students are modeling mRNA during the process of protein synthesis. which answer choice correctly describes the model of mRNA strand being transcribed

Answers

Answer:

This question lacks options, the options are:

A. the mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine

B. the mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine

C. the mRNA strand is an exact copy of the DNA template strand; however uracil instead of adenine is paired with thymine

D. the mRNA strand is an exact copy of the DNA template strand; however, uracil instead of thymine is paired with adenine

The answer is B

Explanation:

Protein synthesis which encompasses how gene is used to synthesize proteins consists of two processes namely; transcription and translation.

- Transcription is the process whereby the sequence of a DNA template is used to synthesize a mRNA strand. The mRNA sequence is synthesized using the COMPLEMENTARY BASE PAIRING RULE, which states that Adenine base (A) will always hydrogen pair with Thymine (T) while Guanine (G) will always pair with Cytosine (C).

This means that the mRNA strand produced is complementary to the DNA template strand that was transcribed. However, Uracil base (U) replaces thymine (T) in the mRNA molecule because Thymine is not found in RNA. Hence, Uracil instead of Thymine pairs with Adenine in the mRNA.

That is;

A - U, T - A, G - C.

Farmer Tom decides that he is going to stop using chemical fertilizers and pesticides on his farm, and is going to start practicing organic agriculture. Outline THREE practices that he would have to implement.

Answers

Explanation is in a file

Light colored fur is recessive (bb) to dark colored fur. If 35% of the mouse population is light colored, answer the following:

What percent of the population is BB? (Round to two decimal places)


What percent of the population is Bb? (Round to two decimal places)


What percent of the population is bb? (Round to two decimal places)


What is the frequency of the single dominant allele B? (Round to two decimal places)


What is the frequency of the single recessive allele b? (Round to two decimal places)

Answers

Answer:

What percent of the population is BB? (Round to two decimal places)  → 17% BB   What percent of the population is Bb? (Round to two decimal places)         → 48% Bb   What percent of the population is bb? (Round to two decimal places)    → 35% bb   What is the frequency of the single dominant allele B? (Round to two decimal places) → 0.41   What is the frequency of the single recessive allele b? (Round to two decimal places) → 0.59

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Why do scientists often use bacteria to produce medicines?

Answers

scientists have ways to ensure that the bacteria make the proteins in large amounts. For these reasons, bacteria can function as 'protein factories', producing medically important proteins and others.

Scientists often use bacteria to produce medicines because of their easy use, genetic manipulability, and genetic ability to produce medicine.

What are the characteristics of bacteria?

Scientists often use bacteria to produce medicines because bacteria grow quickly and can be cultured in large quantities. This makes them a cost-effective option for production of large amounts of medicine.

Bacteria also have a simple genetic makeup that is easy to understand that allow scientists to easily produce proteins. Some bacteria have the ability to produce natural compounds containing medicinal properties, such as Streptomyces produces several antibiotics that are used in medicines.

Bacteria can also be genetically engineered to produce new compounds that can be used as new medicines. Bacteria are highly versatile for production of wide range of medicines.

Therefore, bacteria are used for producing medicines because of easy use, genetic manipulability, and genetic ability to produce medicine.

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Select the correctly described examples of host defense mechanisms. Check All That Apply Innate anatomical and physiological barriersInnate anatomical and physiological barriers Innate cellular and chemical defensesInnate cellular and chemical defenses Innate host defenses due to B and T cells and their productsInnate host defenses due to B and T cells and their products Use of drugs and antibioticsUse of drugs and antibiotics Specific recognition of invaders by physical barriersSpecific recognition of invaders by physical barriers

Answers

Answers: examples of host defence mechanism include: Innate anatomical and physiological barriers, Innate cellular and chemical defenses.

Explanation:

The capability of the human body to resist almost all types of organisms or toxins that tend to damage the tissues and organs is known as IMMUNITY. This host defence mechanism can be classified into INNATE or adaptive immunity.

The immunity that results from general processes, rather than from processes directed at specific disease organisms is called the INNATE IMMUNITY. The anatomical and physiological barriers of the innate immunity provides the first line of defence against pathogens. Examples of these barriers of the innate immunity includes:

--> Destruction of swallowed organisms by the low stomach pH and digestive enzymes

--> The vigorous mucociliary clearance mechanisms of the respiratory airways and lungs.

--> Resistance of the skin to invasion by organisms

While examples of innate cellular and chemical defenses include:

--> Phagocytosis of bacteria and other invaders by white blood cells and cells of the tissue macrophage System

--> lysozymes, a mucolytic polysaccharide that attacks bacteria and cause them to dissolute.

--> basic polypeptides which react and inactivate certain types of gram- positive bacteria

-->natural killer lymphocytes that can recognize and destroy foreign and tumor cells.

The Moon is visible in the sky
A.
only during the day.
B.
all night long during every night of the month.
C.
only at night.
D.
sometimes at night and sometimes during the day.
PLEASE HELP ASAP!!!

Answers

D. Cause sometimes you can see the moon in the day time and you can see it at night

What is the genotype for a person who is heterozygous for Type B blood?

Answers

Answer:

I'm sooooo confused

Explanation:

I am not sure, I’m sorry :(

The scientific name for an organism includes which taxa?
A. class and family
B. domain and kingdom
C. genus and species
D. kingdom and phylum

Answers

Answer:

C

Explanation:

Scientists name animals and plants using the system that describes the genus and species of the organism.

pls help trulyhelp for 25 point not lying pls help asap

Answers

Answer:

Im not sure what your exactly asking but for the last question just say something along the lines of how Europe was the highest popualtion dessity and Australia has the lowest. Do you need help with the bar graph?

Explanation:

Answer:  You can say that there is sometimes a pattern in the numbers.  In the graph, The density of Africa minus North America's density equals 2, and the density of North America minus South America's density also equals 2.

Sorry, if this didn't help and also if it is not the right answer.

Which type of land formation would NOT occur at a convergent plate boundary of two
oceanic plates? ( plz help ASAP) :(

Answers

Answer:

island arc im prettu sure

Explanation:

50 POINTS!!!!!!!!! ANSWER ALL!!!!(This is a repost)

1. Fill in the complementary DNA strand using DNA base pairing rules.

2. Fill in the correct mRNA bases by transcribing the bottom DNA code

3. translate the MRNA codons and find the correct amino acid using the codon table

4. Use the MRNA sequence to find the correct anticodon for the TRNA molecule ​ ​

Answers

I attached it

Hope it helps

please help I am in class and I need to turn in asap ​

Answers

I think the answer is D

In the human brain, the occipital lobe, controls vision. Which of the letters on the diagram above indicated the occipital lobe of the human brain?

A) e
B) a
C) d
D) c

Answers

Answer:

A) e

Explanation:

Answer:

option. A

E. represent the optical lobe of the human brain

hope it helps

Water enters the _____________ of the leaves?

Answers

Answer answer to this question is chloroplasts

The figure above depicts the DNA-protein complex that is assembled at the transcriptional start site of gene X when the expression of gene X is activated in liver cells. Previous studies have shown th gene X is never expressed in nerve cells. Based on the diagram, which of the following most likely contributes to the specific expression pattern of gene X?
A.Expression of gene X produces large amounts of tRNA but undetectable amounts of mRNA.
B The general transcription factors inhibit the activation of gene X in liver cells by blocking the activator from binding to RNA polymerase II.
С The activator is a sequence-specific DNA-binding protein that is present in some tissues but not in other tissues.
D The enhancer is a unique DNA segment that is added to the nuclear DNA of some cells of an organism during the process of mitotic cell division but not other cells.​

Answers

Answer:

C

Explanation:

The activator is a sequence-specific DNA-binding protein that is present in some tissues but not in other tissues. The correct option is C.

What is gene expression?

Gene expression is the process through which a gene's information is used to create a functioning gene product, allowing it to produce end products like proteins or non-coding RNA and ultimately have an impact on phenotypes.

Because a particular protein can only be made when its gene is turned on, gene expression is significant.

However, there are several steps involved in translating a gene into a protein, and one of these steps—the creation of proteins—is crucial in the gene expression pathway that can be changed in cancer.

According to the diagram, the activator is a DNA-binding protein that only binds to certain sequences in select tissues.

Thus, the correct option is C.

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Your question seems incomplete, the missing image is:

What are the two most important changes that occur with matter? Select two answers.

Answers

physical and chemical change

Please help I’ll make as brainliest.

Answers

Answer:

its the second one because genetic engineering is somelike fake

Answer:

B

Explanation: It could be C but Im pretty sure its b

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