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Anuta_ua [19.1K]
3 years ago
9

At the start of the lesson, Ms. Newman, the geneticist, wanted to answer Susan’s questions. You can help. Pick two questions, wr

ite each one below, and then answer each question in 150 to 250 words, applying what you learned from this lesson.
Biology
1 answer:
34kurt3 years ago
7 0
What two questions??
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What should the student do after he has collected and analyzed his data?
suter [353]

Answer:

Write a lab report that summarizes his experiment

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2 years ago
Repressors are transcription factors that bind to _____________sequences in dna
Trava [24]

Answer:

The given blank can be filled with operator.

Explanation:

The proteins that assist in turning on or turning off the function of a specific gene by getting combined with certain sections of the DNA are known as transcription factors. The transcription factors that activate the transcription of a specific gene are known as activators, while that prevents transcription and is termed as repressors.  

A repressor can be an RNA or a DNA binding protein, which prevents the articulation of genes by getting combined with the operator. A repressor, which binds with DNA prevents RNA polymerase from getting combined with the promoter, which further inhibits the transcription of the genes into mRNA.  

6 0
3 years ago
In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over spher
dangina [55]

Answer:

Genotypic ratio = 16 WwDd: 0

Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit

Explanation:

This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).

According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:

WWDD - WD, WD, WD, WD

wwdd - wd, wd, wd, wd

Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.

The genotypic ratio is 4 WwDd: 0

The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.

8 0
2 years ago
the bacteria in a colony are unable to perform conjugation.How would this hurt the bacterial colonys chance for survival
Alenkinab [10]

The colony would have less genetic variation. The Bacteria in the colony would be too genetically similar

4 0
3 years ago
Read 2 more answers
Speciation, which leads to diversity among species through natural selection, occurs when
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Natural selection and speciation: 'Ecological speciation'. ... Natural selection is generally recognized as a central mechanism of evolutionary change within species. Thus, natural selection plays a major role in generating the array of phenotypic and genetic diversity observed in nature.

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3 years ago
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