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stiv31 [10]
3 years ago
8

In crime scene, as investigator you saw an alleged almost dried semen in the bedsheets at the crime scene. How will you collect

the specimen?​
Biology
1 answer:
Alenkasestr [34]3 years ago
7 0

Answer:

an investigator will often use a black light to scan an area for traces of bodily fluids left at the crime scene. if there’s a substance that resembles semen or blood, they will often times apply a spray if it is dry and use a cotton swab to collect it in a vial to test back at the lab for dna evidence.

Explanation:

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A cell pump hormones out into the bloodstream; a process that requires energy. If 4 ATP were converted to ADP, how much energy w
vagabundo [1.1K]

Answer:

The question lacks options, the options are;

A) 4 KJ

B) 122 KJ

C) 30.5 KJ

D) 1600 KJ

The answer is B, 122KJ

Explanation:

Adenosine triphosphate (ATP) is the energy currency of all living cells. It is the usable form of energy by cells for their life functions. Energy in ATP is harnessed via the hydrolysis of one of its phosphate molecules to form Adenosine diphosphate (ADP). The energy (measured in Kilojoules) needed by cells is released in this process.

In this case, a cell uses energy to pump hormones into the bloodstream. According to the question, 4 ATP's were used i.e. 4 ATP were converted to ADP. The hydrolysis of one ATP molecule releases 30.5 KJ/mol of energy needed for cellular work.

Hence, if 4 ATP were utilized by this particular cell, 4 × 30.5 KJ = 122 KJ of energy will be used by the cell to pump hormones.

8 0
3 years ago
When scientists were attempting to determine the structure of the genetic code, Crick and coworkers found that when three base a
goldenfox [79]

Answer:

Option A, the code is triplet

Explanation:

Complete question

When scientists were attempting to determine the structure of the genetic code, Crick and coworkers found that when three base additions or three base deletions occurred in a single gene, the wild-type phenotype was sometimes restored. These data supported the hypothesis that ________.

A) the code is triplet

B) the code contains internal punctuation

C) AUG is the initiating triplet

D) the code is overlapping

E) there are three amino acids per base

Solution

The team of Francis Crick was the first one to determine the length of the codon in 1961 by using a T4 bacteriophage. Through an assay, they devised the properties of genetic code and introduced frame shift mutation. So during the initial stage of experiment, only one single frame shift was introduced with in the viral protein of E. coli bacteria thereby making the protein nonfunctional. They then introduced an additional frame shift to restore the protein structure so that its function could be restored. This experiment was successful and concluded with a finding that genetic code is based on multiple of three bases

5 0
3 years ago
Why meiosis produces haploid cells
Marysya12 [62]

Answer:

La meiosis se encarga de separar las cromátidas hermanas sin inducir una nueva replicación en el ADN; creando así cuatro células con la mitad de cromosomas de sus predecesoras, es decir, células haploides o gametos.

Explanation:

,,,

8 0
4 years ago
A spider has several eyes.
miv72 [106K]

Answer:D To see and help the body respond to the environment

Explanation:

5 0
3 years ago
What is the function of the a transport protein?​
kirill115 [55]

Answer:

Transport proteins act as doors to the cell, helping certain molecules pass back and forth across the plasma membrane, which surrounds every living cell. In passive transport molecules move from an area of high concentration to an area of low concentration.

Explanation:

4 0
3 years ago
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