The FBI uses STR (short tandem repeat) analysis to identify criminals, and the FBI stores the information in a database. How many regions, or loci, of DNA are used for STR analysis?

Answers

Answer 1

Answer: The answer is thirteen.

STR stands for short tandem repeats. In this analysis, highly polymorphic regions with short tandem repeats are used. In FBI investigation, thirteen regions are analyzed and compared. The chance for two people to have the exact same thirteen regions is almost impossible (1 : 1 billion or less). This way a difference between two DNA profiles could be assessed.

Answer 2

Answer:

Answer: it is b

Explanation:

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Why do complex organisms need specialized cells?

Answers

Because these complex multicellular organisms have many functions and are interdependent with other cells to survive. Also, because of mitosis the organism is able to grow and communicate with other surrounding cells forming a bigger and organized system of cells.

A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.
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Which is required for sexual reproduction

Answers

For sexual reproduction there has to be 2 parents. One male and the other female. The father's cell will determine the gender of the organism. This is because a fathers cell has a Y & an X, but the mother has 2 X's. So 1 x goes from the mother but if the father give the Y the organism would be male but if the father gives an X then the organism will be female.

Hope I helped ya!

Answer:

Meiosis

Explanation:

a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.

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An instrument which help to make work easier is called a

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Answer:

Explanation:

machine is a gaget that make our work easier

foe example ; sesssior ,washing machine ,computer

You are looking at tissue under a microscope. One cell shows half the amount of DNA of some of the other cells. This cell is most likely to be in which phase of the cell cycle?G2
G1
M

Answers

i dont even know i will guess it is g1

Having warm weather all year with a distinct winter and summer season where winter is a long, dry, and slightly cooler season with only 4 inches of rain on average, and summer is a very hot, humid, and wet season with 15 to 25 inches of rain, with monsoon rains beginning in May describes the _______ biome(s).a.
rainforest
b.
savanna and grassland
c.
deciduous forest
d.
chaparral

Answers

Having warm weather all year with a distinct winter and summer season where winter is a long, dry and slightly cooler season with only 4 inches of rain on average and summer is a very hot, humid and wet season with 15 to 25 inches of rain, with monsoon rains beginning in May describes the savanna and grassland biomes. The correct option is option "b".

Savanna and grassland is the correct answer. Those types of biomeds are characterized by the definition above, and two clear examples of these type of biomeds are India and certain part of Africa. Those types of biomeds create a unique life around them, when there is a lot of diversity and a lot of contrst between the season when it comes to life population, as often during the dry season some populations migrate towards more humid territories.

Trace the flow of energy through a typical food chain (describing "what eats what"), including the original source of that energy and its ultimate form after use. Underline each form of energy and energy-storing molecule, and boldface each process which transfers or transforms energy.Can someone explain to me what exactly I'm supposed to do for this and give me guidelines.

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You need to draw a food chain starting with something small like bacteria and and getting back around the loop to bacteria again( explaining what the the previous organism does to the next for example it eats it). Then you need to underline the organisms/animals. Then write in bold the way it got the energy from the previous one( for example if it eats it )

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