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3 years ago

To distinguish between human and animal hair, forensic scientists may look at what part of the hair?

Biology

1 answer:

olasank [31]3 years ago

5 0

Obviously they look at the root or whatever they may call the part that connects the follicle to the scalp.

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Please! I only need the top one!! Please help :(

Lana71 [14]

The fuel that comes from decayed organisms is petroleum

7 0

3 years ago

) Consider a pea plant- it has a gene controlling seed color- yellow Vs green; another gene controlling seed texture-smooth Vs w

lana [24]

Answer:

Yellow smooth - 9

Yellow wrinkle - 3

Green smooth- 3

Green Wrinkle - 1

Explanation:

Let the green color of the seed be depicted by "G" and the yellow color of the seed be depicted by "g"

Let the smooth the seed be depicted by "R" and wrinkled seed be depicted by "r"

F1 cross -

true breeding smooth green plant ( RRGG) and true breeding wrinkled yellow (rrgg)

F1 gamete will be RG, RG, rg, rg

F1 offspring will be RrGg , Thus all F1 offspring will be heterozygous smooth and yellow.

Thus, R is dominant over r and g is dominant over G

F2 Generation –

RrGg x RrGg

Gametes will be RG, Rg, rG, rg

RG Rg rG rg

RG RRGG RRGg RrGG RrGg

Rg RRGg RRgg RrGg Rrgg

rG RrGG RrGg rrGG rrGg

rg RrGg Rrgg rrGg rrgg

R is dominant over r and g is dominant over G

Genotypes are –

RRGG - 1 (Smooth Green)

RRGg-2 (Smooth yellow)

RrGG-2 (Smooth Green)

RrGg-4 (Smooth yellow)

RRgg- 1 (smooth yellow)

Rrgg – 2 (Smooth yellow)

rrGG – 1 (wrinkled Green)

rrGg – 2 (Wrinkled yellow)

rrgg – 1 (wrinkled yellow)

Yellow smooth - 9

Yellow wrinkle - 3

Green smooth- 3

Green Wrinkle - 1

4 0

2 years ago

Willie is on the bus with his classmates. who is most likely to be diagnosed with psychopathology based on the criteria that his

Paha777 [63]

Willie on the bus with his classmates. Who is most likely to be diagnosed with psychopathology based on the criteria that his or her behavior impairs good daily functioning?

Elizabeth, who must walk up and down the bus steps 10 times before getting on

7 0

2 years ago

Describe how Leeuwenhoek's discovery of life in a drop of water led to the future scientist to the germ theory of disease?

Alecsey [184]

Answer: germ theory

Explanation: Germ theory of disease is a theory in biology. It says that small organisms (called germs), also known as microbes, cause diseases. Most, but not all diseases are infectious diseases. The germ theory states that small organisms cause a reaction in the body of those who are infected. The body's reaction to infection is called a disease.

Reference: Wikipedia

8 0

2 years ago

Describe the activity of chromosomes in each stage of meiosis 1 and meiosis 2

Solnce55 [7]

Prophase- *Nuclear membrane disappears

( so chromosomes can move around)

Metaphase- Chromosomes line up in the middle of the cell

Anaphase-*Chromosome copies pull apart from each other.

Telophase-<span>*Nuclear division has finished and nuclear membrane reappears</span>

<span> This is the process for Meiosis 1 not for 2 (FYI)</span>

4 0

3 years ago