What is Fertilization

Why is a punnett square used in genetics?

vaieri [72.5K]

The Punnett square is a diagram used to predict the result of a breeding experiment through analysing predictable traits which will be passed on genetically by each organism. This diagram helps to identify the probability of an offspring having specific genotypes and characteristics after the breeding process. This is determined by placing the parent genotypes into the diagram and crossing them.

6 0

3 years ago

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Even though natural gas is the cleanest of the fossil fuels, which of the following are problems with natural gas? Select

andrew11 [14]

Answer:

It is dangerous if directly inhaled, it is not a very abundant energy source and it releases the most toxins when burned i think :))

Explanation:

6 0

3 years ago

Asap

Sphinxa [80]

From what we know, we can confirm that any measurement of time is relative when being compared to another passage of time.

<h3>What are some examples of relative time?</h3>

As stated, time, as with any measurement, becomes relative when compared to something else. For example:

A six-hour class can be considered extremely long, however, it is minuscule when compared to the hours present in a full calendar year.
Another possible example is how the life of a human is relatively short when compared to the time of existence of the human race.

Therefore, we can confirm that any measurement of time is relative when being compared to another passage of time, as shown with the above examples.

To learn more about relativity visit:

brainly.com/question/164109?referrer=searchResults

3 0

2 years ago

Kingdom of organisms is usually multi-celled, heterotrophic, and has cell walls made of chitin, divided by openings called septa

shusha [124]

FUNGI is the Kingdom of organisms that is usually multi-celled, heterotrophic, and has cell walls made of chitin, divided by openings called septa.

The other 5 kingdoms are Archaebacteria, Eubacteria, Protista, Plantae, Animalia.

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3 years ago

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The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list a

____ [38]

Answer:

F1

A A

a Aa Aa

All the offspring have flower located at axial position

F2

A a

A AA Aa

a Aa aa

Three offspring with genotype i,e Aa, Aa and Aa will have flower located at axial position

Only offspring with genotype "aa" will have flower located at terminal position

Explanation:

Let the allele "A" represent the characteristics of axial position of flower

Let the allele "a" represent the characteristics of terminal position of flower

Given -

"A" is dominant over "a"

F1 generation -

Two parents with homozygous genotype for both A and a are crossed . The punnet square for the cross between "AA" and "aa" is as follows -

A A

a Aa Aa

Thus the genotype of offspring is "Aa"

Since, "A" is dominant over "a", all the offspring have flower located at axial position

F2 generation-

The cross between two parents having heterozygous genotype "Aa" will take place .

The punnet square for the cross between "Aa" and "Aa" is as follows -

A a

A AA Aa

a Aa aa

Three offspring with genotype i,e Aa, Aa and Aa will have flower located at axial position

Only offspring with genotype "aa" will have flower located at terminal position

8 0

3 years ago