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4 years ago

What is the result of a substitution mutation?

Biology

2 answers:

kobusy [5.1K]4 years ago

6 0

Answer:

A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced.

Minchanka [31]4 years ago

5 0

Answer:

The new amino acid may be the same as the original amino acid or it may be different.

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Which plant cells contain half the DNA from one parent plant?

grandymaker [24]

Pith and cambium

Ps I got it right

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3 years ago

Read 2 more answers

The pedigree below tracks the presence of dimples through a family's generation. Having dimples is an autosomal dominant trait.

yulyashka [42]

A pedigree is a representation of a family history tracking a trait. The graph shows the inheritance pattern of the trait and its expression through several generations.

<h3>What is an autosomal dominant trait?</h3>

The autosomal dominant trait is the characteristic that is coded by a gene located in an autosomal chromosome (this is, not a sexual chromosome).

This trait is dominant because it is coded by the dominant allele, meaning that the recessive allele codes for the absence of dimples. The presence of only one dominant allele in the genotype is enough for the idividual to express dimples.

<u> Genotype Phenotype </u>

DD, Homozygous dominant Dimples

Dd, Heterozygous Dimples

dd, Homozygous recessive No Dimples

<h3>What is a pedigree?</h3>

The pedigree is the representation of a family history conserning a certain trait. In this case, dimples.

The pedigree shows the expression -and inheritance pattern- of the trait through several generations.

To correctly interpret a pedigree, we need to know that

Family members

→ Individuals are represented with geometrical figures.

→ Males are squares

→ Females are circles

Trait/Phenotype

→ Healthy/normal/not affected individuals are represented with empty figures

→ Affected/mutated individuals are represented with solid black figures

Generations

→ Each file is represented with a roman number, indicating the Generation.

Here we will assume that

Individuals represented with solid figures express dimples -shaded individuals-. They can be either DD or Dd. This is because dimples is not usuall.

Individuals with no dimples are represented with empty figures and are dd.

According to the provided pedigree,

I-1 ⇒ man DD or Dd

I-2 ⇒ woman dd

II-1 ⇒ man Dd or DD

II-2 ⇒ woman dd

II - 5 ⇒ woman dd

III - 1 ⇒ man Dd

III- 2 ⇒ woman dd

III - 6 ⇒ woman dd

Since this pedigree does not specify the relationship between individuals, I can not answer the question based on it. So, I will attach another tree to specify genotypes.

I advise you study this new example, and then follow the same reasoning to choose the correct individual according to you pedigree.

Yo can learn more about pedigrees at

brainly.com/question/19516649

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2 years ago

The method for determining energy expenditure that involves the measurement of heat given off by the body during a select period

Kryger [21]

Answer:

The correct answer is direct calorimetry.

Explanation:

A method of attaining direct determination of the concentration of heat produced by the body inside an insulated chamber, which is sufficiently big to allow moderate amounts of work is termed as direct calorimetry. These chambers within which the measurement is done is also known as the whole-room calorimeters.

The mentioned process provides the measurement of the energy discharged in the form of heat.

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3 years ago

Which of the following are examples of short-term, human-induced environmental changes? Select three answer choices

Mamont248 [21]

What’s the answer choices?

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3 years ago

The balance or lack of balance between accumulation and wastage is called ________. group of answer choices glacial trough glaci

Roman55 [17]

Glacial balance is the balance or imbalance between accumulation at the top of the glacier and loss or disposal at the bottom.

Glaciers (US: /ˈɡleɪʃər/; UK: /ˈɡlæsiər, ˈɡleɪsiər/) are thick masses of ice that are constantly moving under their own weight. Glaciers form where snow cover has outpaced erosion for years, sometimes centuries.

As it flows slowly and deforms under its own weight, it takes on features such as cracks and shellac.

As they move, they erode rocks and debris from their roots, forming features such as cirques, moraines, and fjords. Glaciers can flow into bodies of water, but they form only on land, unlike the much thinner sea and lake ice that forms on the surface of bodies of water.

learn more about Glaciers here. brainly.com/question/6666513

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2 years ago