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VARVARA [1.3K]
3 years ago
14

The degrees of freedom are equal to n – 1, where n is the number of different expected Please choose the correct answer from the

following choices, and then select the submit answer button. Answer choices phenotypes. genotypes. heterozygotes. alleles. homozygotes.
Biology
1 answer:
Semenov [28]3 years ago
3 0

Answer:

Phenotypes

Explanation:

Chi-square distribution is affected by the total number of independent categories present in an experiment. An increased number of total categories also increases the chi-square value. The total number of independent categories possible in the given experiment represents its "degree of freedom".

For example, a cross between two heterozygous tall pea plants gives a progeny of 1000 plants out of which 700 are the tall plants. And the total number of short plants would be 1000-700= 300.

Here, "tall plants" is an independent category while the number of "short plants" depends on the total number of tall plants.

Hence, the degree of freedom is calculated by following formula= "n-1". Here, "n" represents the total number of different categories, the phenotypes (tall and short plants are two possible phenotypes in the given example).

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Don't copy and paste from other question answers plss. I'm giving 40 points
Artist 52 [7]

Answer:

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3 years ago
A scientist has sequenced a gene from a multicellular eukaryotic organism. Brendan claims that by analyzing the gene sequence an
scZoUnD [109]

Answer:

D. After a gene is transcribed, introns are removed from the pre-mRNA to form the mRNA that is translated.

Explanation:

According to this question, a gene was sequenced by scientists from an eukaryotic organism. Brendan claims he can conclude the resulting protein after the transcription and trans of the gene.

It is true that transcription and translation are the processes that a gene undergo in order to be expressed i.e. produce protein. However, a gene sequence contains both the coding and non-coding regions in it. The coding regions code for a protein and are called EXONS in the mRNA while the non-coding regions do not encode proteins and are called INTRONS in the mRNA.

These introns are removed from the mRNA molecule that results from the transcription of a gene. The mRNA undergoes a process called SPLICING, which removes the non-coding part of the mRNA (introns) and joins the coding parts (exons).

Hence, if this occurs, Brendan will not be able to accurately conclude the resulting protein from that gene sequence because a portion of that gene will still be removed during SPLICING of post-transcriptional processing.

3 0
4 years ago
What is the relevance of osmosis to the liver cells?​
Vedmedyk [2.9K]

The kidneys are the main osmoregulatory organs in mammalian systems; they function to filter blood and maintain the dissolved ion concentrations of body fluids. They are made up internally of three distinct regions—the cortex, medulla, and pelvis.

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2 years ago
5 pts
balandron [24]
Answer: False
Explanation: because the Emperor Penguin live in Antarctica and the Galapagos Penguin is the only penguin that lives north of the Ecuador.
4 0
3 years ago
A very hot. type o star would most likely its most intense radiation as?​
Alex_Xolod [135]

Explanation:

Ultraviolet

1. This means a very hot O type star would emit shorter wavelength radiation. Thus, a very hot, type O star would most likely emit its most intense radiation as Ultraviolet.

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3 years ago
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