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Snezhnost [94]
2 years ago
7

Hello!

Biology
2 answers:
Blizzard [7]2 years ago
8 0
A is your answer …….
BARSIC [14]2 years ago
7 0

Answer:6

Explanation:because of the girl on the right she is sitting down

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In a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. In a population of fr
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The expression which is the correct way to calculate the frequency of the dominant allele is 134/200. Thus, the correct option is D.

<h3>What is Allelic frequency?</h3>

The allelic frequency may be defined as the sum total of all the alleles of a gene in a population. It represents the overall genetic diversity within a population.

The allelic frequency is calculated by the formula when the genotypes are given in number. It is as follows:

2 × Number of Purebred dominant + Number of heterozygous/ 2× Total number of individuals in a population.

∴ Allelic frequency of dominant allele = 2 × 50 + 34/ 2× 100 = 134/200 = 0.67.

The allelic frequency of the Dominant allele is 0.67 while the allelic frequency of the recessive allele is 0.33.

Therefore, it is well described above.

To learn more about Allelic frequency, refer to the link:

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5 0
2 years ago
At the beginning every heartbeat the heart is what?
PSYCHO15rus [73]

Answer:

The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen ... It sends out an electrical signal to start the contracting (pumping) of the heart muscle.

Explanation:

6 0
3 years ago
In humans which pair of chromosome do males have
Marta_Voda [28]

Answer:

The male has two XY while females only have x.

Explanation:

There you go

5 0
2 years ago
_______ are thought to have been present before vertebrates.
Verizon [17]

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invertebrates i guess

Explanation:

hope it helped!!!

8 0
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Select the correct answer from each drop down menu researcher was studying mutations in bateria.he found that certain bateria ha
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A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of <u>evolutionary genetics.</u> The mutation will lead to <u>all the bacteria becoming resistant to the antibiotic.</u><u> </u>

Genetic evolution :

Evolutionary genetics examines the relationship between genetic variation and evolutionary change. As a result of the recent expansion in the availability of whole genome sequence data, large amounts of genetic data are being produced at an increasing rate, making programming an indispensable tool for researchers.

The spread of antibiotic resistance among pathogenic bacteria is a straightforward and elegant example of adaptation through natural selection. Through mutations that alter the biological targets of antibiotics or by obtaining resistance genes from other bacteria, microorganisms can develop resistance to antibiotics.

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6 0
2 years ago
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