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Lynna [10]
3 years ago
5

Identify the plasmid that must contain the CD3γ core promoter sequence but the fewest or no negative regulatory sequences. Based

on the data in Figure 2, describe the most likely cause of the variation in luciferase activity among the cells that contain plasmids pCD3γ-419 , pCD3γ-309 , pCD3γ-239 , and pCD3γ-199 . Calculate the approximate percent increase in luciferase activity between cells containing plasmid pCD3γ-59 and cells containing plasmid pCD3γ-149 . Round to the nearest whole number.
Biology
1 answer:
otez555 [7]3 years ago
8 0

Answer:

The plasmid that must contain the CD3y core promoter sequence is PCD3γ-15, and the most likely cause in variation is due to the differing regulatory sequences in the cell.

Explanation:

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Which process could occur in maple trees to decrease the chromosome number in pollen cells from 52 down to 26?
andrew11 [14]

Answer:

Meiosis

Explanation:

In a process of meiosis a sing cell divides twice to produce four daughter cells which contains half the amount of. genetic information These cells are sex cells. These four daughter cells consists of half the number of chromosomes of the parent so they are haploid. This is the reason in maple tree the chromosome decreased from 52 to 26.

4 0
3 years ago
In humans, the allele for Rh factor comes in two forms: Rh+ and Rh–. Inheritance of the alleles determines whether an individual
vitfil [10]

Answer:

The correct answer is:

which of the blood type forms when an individual receives one copy of each allele? (D)

Explanation:

Alleles are each of the alternative forms of a gene. In this example, the two forms of the alleles for the Rhesus (Rh) factor are Rh+ and Rh-. These alleles can either be expressed as h0m0zygous alleles (two of the same kind; Rh+ Rh+, Rh- Rh-) or heterozygous alleles (a pair made up of both; Rh+ Rh-)

In the h0m0zygous state, there is the expression of the allele that makes up the pair. However, in the heterozygous state, the dominant allele is expressed phenotypically, even in the presence of the recessive allele that makes up the genotype. Therefore, the dominant allele is the resulting blood group seen in an individual in a heterozygous (one copy of each) state.

7 0
3 years ago
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What are plants with extra chromosomes called?
kifflom [539]

Answer: polyploids

Explanation:

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Which of these is a plant organ responsible for absorbing light energy to make food?
mrs_skeptik [129]

Answer:

The answer is leaf . Leaf is exposed to sunlight and thus it can store light energy

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Among cattle, having horns is a recessive trait. Cattle without horns, which are called polled cattle, are common. Suppose a hor
gtnhenbr [62]

Let say, polled (without horn) parent cattle is dominant (PP) and parent horned cattle is recessive (pp). They cross bred which produced all polled calf F1 generation. F1 will be hybrid for trait horn (Pp). On Selfing of F1 progeny ( Pp x Pp) will give  1 homozygous polled  (PP) cattle, 2 heterozygous polled (Pp) cattle and 1 cattle with horn recessive (pp) in F2 generation.

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