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GuDViN [60]
3 years ago
13

Which of the following is a disadvantage of online surveys? They result in high response bias They lead to higher cost per compl

eted interview than other methods. They involve slow data acquisition. They are less convenient for using visual stimuli They require extensive coding after the data is collected.
Biology
1 answer:
Sati [7]3 years ago
3 0

"They result in high non-response bias" is a disadvantage of online surveys.

<u>Option: A</u>

<u>Explanation:</u>

To several market analysts online surveys have become the default tool. It is fairly so. The ease of accessibility and the use of online surveys also in turn creates issues in itself. The advantages and disadvantages of online surveys are listed below:

<u>Advantages:</u>

  • Accessible to most target audiences.
  • Generally no cost-based geographic restrictions.
  • Motivate flexible framework with countless question forms and formats.

<u>Disadvantages:</u>

  • Poorly chosen networks of dissemination can contribute to skewed data, low success rates and a host of other possible problems.
  • Difficulty targeting other groups of respondents, like those without internet access or samples of non-customers in niche sectors.
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In cats, the dominant O allele of the X-Iinked orange gene is required to produce orange fur, the recessive o allele of this gen
Yuliya22 [10]

Explanation:

Female cats have two X chromosomes. In the early stages of mammal development each cell in the embryo will randomly inactivate one of the X chromosomes, and all of its daughter cells will keep that same X chromosome inactive (its genes won't be expressed).

For that reason, the adult individual will have patches of cells that express the genes of only one X chromosome, and patches of cells that express the genes of the other one.

<h3>a) What type of crosses would be expected to produce female tortoiseshell cats? </h3>

The female tortoiseshell cats have patches of cells that express the dominant <em>O</em> allele and patches of cells that express the recessive <em>o</em> allele. That means that they have the genotype XᴼXᵒ.

These females can come from the crosses of:

  • XᴼXᴼ x XᵒY: Orange female x black male
  • XᵒXᵒ x XᴼY: black female x orange male
  • XᴼXᵒ x XᵒY: tortoiseshell female x black male
  • XᴼXᵒ x XᴼY: tortoiseshell female x orange male

<h3>b. Suggest a hypothesis to explain the origin of male tortoiseshell cats</h3>

Male cats normally have one Y chromosome and <u>one</u> X chromosome, and their fur will have the color determined by the allele of the O/o gene in the X chromosome they have. However, in rare cases males can have two X chromosomes and a Y chromosome. If the genotype is XᴼXᵒY, the males will also inactivate one of the X chromosomes randomly in each cell, giving the tortoiseshell phenotype.

<h3>c. Calico cats (most of which are females) have patches of white, orange, and black fur. Suggest a hypothesis for the origin of calico cats.</h3>

The patches of white are determined by another gene (Piebald Spotting, with the alleles S/s) in an autosomal chromosome, that basically causes unpigmented fur. A homozygous genotype <em>SS </em>produces large patches of white fur, the heterozygous <em>Ss</em> genotype causes smaller patches of white, and the homozygous <em>ss </em>genotype determines the lack of white color.

Female Calico cats would have the genotypes XᴼXᵒ SS or XᴼXᵒ Ss.

8 0
3 years ago
The term "grandmother cell" refers to a neuron that
erica [24]
It is a hypothetical neuron that can be shown to represent a specific psychological concept. this cell becomes active every time someone thinks about a complex thing.
4 0
3 years ago
Examine the diagram of the cell cycle. Which label identifies the stage in which the DNA is copied and the cell grows? W X Y Z
kondor19780726 [428]

The right answer is Y (G2 phase).

The interphase is the moment when the cell lives and does everything for which it is programmed. She is also preparing to divide. The steps of the division are detailed below:

Phase G1 (W) comes from a word "GAP" (= interval). During this phase, the cell performs its normal metabolism, it grows to a critical size that will give the signal to move to phase S which consists of replicating the nuclear DNA (X).

Once DNA replication is complete, phase G2 begins (The letter Y). Here, the growth of the cell end, but it will continue to fulfill its functions. During this phase, the centrosomes replicate, they will allow the smooth course of the mitosis. This phase ends by passing the G2 checkpoint, where the mitosis begins.

The shortest phase (Z) is M phase (mitosis / meiosis).

(I don't know if it is the same diagram but i mean this one)

4 0
3 years ago
Read 2 more answers
Carlson received a blue-eyed allele from BOTH of his biological parents. What is the term to describe this gene pattern
Bond [772]

Answer: Recessive Gene. Homo zygote Allele.

Explanation:

Each gene is composed of two alleles. Alleles can be Dominant or Recessive. A Dominant gene is always expressed on the Phenotype (XX/Xx); A Recessive gene expresses on the Phenotype if both alleles are the same (xx).

In this statement, it's implied that the gene that codes for "blue-eyes" is recessive, since both parents had to provide the same allele for it to express.  

8 0
3 years ago
3. During the Krebs Cycle, high-
konstantin123 [22]

Answer:

ATP and Carbon

Explanation:

Carbon is released and so is ATP.

4 0
2 years ago
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