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yulyashka [42]
3 years ago
15

A geologist finds a metamorphic rock and notices that it has grains that formed in parallel layers. The geologist pries at the

Biology
2 answers:
frosja888 [35]3 years ago
7 0

Answer: a) gneiss

Explanation: because edge told me

Verizon [17]3 years ago
3 0

Answer:

A

Explanation:

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You extract DNA from some of your cells and cut out the complete human growth hormone gene directly from this DNA. You put this
Mars2501 [29]

Answer:

A) Bacteria cannot carry out RNA splicing to remove introns and so produced a much larger protein.

Explanation:

Human is a eukaryote and has both introns and exons in its genes. Transcription of human genes forms a primary transcript that undergoes post-transcriptional modification.

One of the important even during the post-transcriptional modification is the removal of introns and joining the exons together to make a mature mRNA which in turn serves as the template for protein synthesis.

<em>E. coli</em> is a prokaryote and does not have the enzymatic machinery required for the splicing of introns.

Cloning of a complete human gene into the <em>E. coli</em> cells would not form the respective human protein since the bacterial cells would not be able to splice the introns from the primary transcript.

7 0
2 years ago
If an organism didn't have DNA, it would be missing which sign of life? A. one or more cells B. information system C. response t
Zepler [3.9K]

Answer:

The correct answer would be - option B. information system.

Explanation:

DNA is the unit of heredity as it contains the genetic code of an organism which is carried all the genetic information and transfer from the parent cell to the daughter cell. It also carries the information required for making all essential proteins in an organism.

So, if an organism did not have DNA, it would be missing the information system which is also responsible for the cell division other than given information.

6 0
2 years ago
How much of a 100 gram sample of gold-198 is left after 810 days if it’s half life is 2.7
Juliette [100K]

Answer:

mass₁=100.0g

time₁=2.70 days

mass₂=x

time₂=8.10 days

8.10/2.70 = 3

100/2 = 50/2 = 25/2 = 12.5 g

x=12.5 g

7 0
3 years ago
If Mr. and Mrs. Johnson had four children together, what color of hair would the children likely have?
Ksju [112]
If the parents have black hair then all the kids would have black hair (a)

if one parent has blonde hair and the other has black hair then 2 kids would be blonde and 2 would have black hair (d)

if the parents have blonde hair then the kids would have blonde hair (c)
7 0
2 years ago
What do dna microarray assays allow scientists to study regarding gene expression?
Allisa [31]

DNA microarray assays allow scientists to identify networks of gene expression across an entire genome.

The microarray is scanned to determine the expression of each gene printed on the slide after hybridization. The associated spot on the microarray turns red if a particular gene's expression is higher in the experimental sample than in the reference sample.

The DNA microarray is a technology that is used to identify whether a specific person's DNA has mutations in genes like BRCA1 and BRCA2. The chip is made up of a tiny glass plate that is enclosed in plastic. A few businesses use techniques resembling those employed to create computer microchips to produce microarrays.

Learn more about DNA microarrays here: brainly.com/question/14728534

#SPJ4

7 0
2 years ago
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