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Paul [167]
3 years ago
12

Investigator a conducts research on emphysema using biospecimens from human subjects. the consent form indicates that the resear

ch will focus exclusively on emphysema. investigator b wishes to use the biospecimens for research on lung cancer. can investigator b use the specimens for cancer research without re-consent if the specimens are de-identified?
Biology
1 answer:
dezoksy [38]3 years ago
7 0
Yes, investigator b can use the specimens for cancer research without re-consent if the specimens are de-identified.

De-identification is the process of removing identifiers from human subject research specimens for the sake of privacy for research participants and to avoid leaking personal information. 

<span>Since the specimen has been de-identified it can not longer be connected to a specific individual. Thus, his/her identity is safe. 

I attached the document I read that is the basis of my answer. </span>
Download pdf
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The goal of the world resource simulation center is best described as _______. a. solving current problems regarding world resou
natulia [17]

The correct answer is (c) determining how to manage global resources for all humanity

The goal of the world resource simulation center is a very large platform to manage global resources in the form that it serves to all humanity. The team there compiles the inventory of resources, analyses and assess the resources  to solve the current problem as well as anticipated problem. They take help of the emerging technology to solve the problems more precisely. The technology there helps to examine the in-depth problems associated with resources.






8 0
3 years ago
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Which of these is an example of quantitative data collection?
aivan3 [116]
I would say A. Quantitative data involves numbers and stuff like that. Unlike qualitative data, which involves pictures and not numerical data. I hope this helped.
5 0
3 years ago
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Normally, this region is imprinted in the sperm, but not the egg. This means that the DNA on the ____________ copy of the chromo
Nostrana [21]

Answer: The DNA on the paternal copy of the chromosome will be methylated at the imprinting center, while the DNA on the maternal copy of the chromosome will not be methylated in this region.

Explanation:

Chromosomes are DNA structures associated with proteins such as histones. They are found in the nucleus of cells and contain genetic information for the development and functioning of an organism. Human beings are diploid, meaning that they possess two copies of each of the 23 chromosomes (a total of 46).

Gametes, which are sex cells such as the sperm (produced by the male) and the egg (produced by the female) that are haploid. This means that they possess only one chromosome of each pair. During fertilization, a male gamete fuses with a female gamete to generate a zygote, which will give rise to a new human being. <u>This new individual will possess half of the genetic material from its father and half from its mother. Thus having a total of 46 chromosomes, 23 from each parent</u>.

Genetic imprinting modulates gene expression by chemical modification of DNA and/or modification of chromatin structure. Often, genetic imprinting causes a gene to be expressed only on the chromosome inherited from one of the parents. One example of imprinting is DNA methylation, which is a process by which methyl groups are added to DNA. <u>Methylation modifies DNA function when found in the promoter gene, repressing gene transcription. This means that a methylated gene will not be expressed</u>, that is, it will not produce a protein encoded by that gene. So, if a region of DNA is imprinted in the sperm cell, the paternal chromosome inherited from this sperm will be methylated in the genes of the offspring. And the offspring will only express the maternal copy inherited, which will not be methylated.

6 0
3 years ago
:With an increase in global climate change occurring, explain some possible effects global
Ipatiy [6.2K]

Answer: rising sea levels

Harsher/more frequent natural disasters

8 0
3 years ago
In recent years, there has been controversy among biologists about whether Neanderthals should be placed within the same species
Natali [406]

Answer:

The correct answer would be - biological species concept.

Explanation:

The biological species concept is a concept of speciation or how a species forms in nature. According to this, a species is the group of the population that can naturally or potentially interbreed with each other, not on the basis of their physical similarities or habitats.

The physical appearance could be useful as recognizing a species but not defining it. As neanderthals show very little or no gene flow with a modern human it means they do not belong to the same species as modern homo sapiens.

Thus, the correct answer is- biological species concept.

4 0
3 years ago
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