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Kay [80]
2 years ago
7

When is it more appropriate to use presumptive tests in a crime investigation? When is it more appropriate to use confirmatory t

ests in a crime investigation? Why is hemoglobin important for presumptive tests for the presence of blood?Describe how the Kastle-Meyer test is used to detect blood at a crime scene.
Biology
1 answer:
k0ka [10]2 years ago
7 0

Answer:Phenolphthalein is a presumptive test that reacts with the heme molecule present in blood. A positive reaction gives a pink color. While bloodstains normally appear red-brown in color, the color of the substrate or the age of a stain may affect the appearance or visibility of the stain.

Explanation:

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If realigns the domains of weaker magnet 
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3 years ago
The water table is ________.
ladessa [460]

Answer:

is the surface where the water pressure head is equal to the atmospheric pressure

Explanation:

is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water.

3 0
3 years ago
One of the products that a plant produces in photosynthesis
12345 [234]

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starch

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As the by product of photosynthesis the starch or glucose(C6H12O6) is produce.

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Which disease can destroy red blood cells?
ss7ja [257]

Which disease can destroy red blood cells?

I) Hemolytic anemia is a decease which destroys red blood cells .

Which disease infects T cells?

ii) chromosomal breakage syndromes (CBSs) is one one of those decease that infect T cells.

Which disease produces a scaly, stinging, and itchy rash on the feet?

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3 0
3 years ago
In a typical monohybrid cross, all of the offspring in which generation will exhibit a single trait without blending?
Alexus [3.1K]

In F1 mono-hybrid cross, all of the offspring in which generation will exhibit a single trait without blending. It is one parents id homozygous for one allele, and other parents is homozygous for the allele.

Mono-hybrid cross used to identify the dominance relation between two alleles.  The hybrid of two organism with homozygous genotype which result in the opposite phenotype for genetic trait.

Mendel start this with the pair of pea plant by two contrasting trait such as tall and other one is dwarf. The cross pollination with each other which resulted that all plants are tall and this is called first hybrid generation or F1 progeny.

To learn more about F1 mono-hybrid cross here

brainly.com/question/11162425

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6 0
1 year ago
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