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lapo4ka [179]
3 years ago
13

Dna testing was commonly used in forensic science beginning in the 1920s. True or false?

Biology
2 answers:
Molodets [167]3 years ago
8 0

Answer:

False.

Explanation:

I am almost entirely sure that DNA testing had not been discovered at this time, but regardless of whether that is true, the very first criminal case that DNA testing was used in occurred in 1985. So no, it was not used commonly in the 20's.

grin007 [14]3 years ago
5 0

Answer:false

Explanation:

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In what ethnic group(s) is CF most common? ___________________________ How is CF inherited?
11Alexandr11 [23.1K]

Answer:

Cystic fibrosis (CF) is more common in Caucasian individuals and is inherited with an autosomal recessive inheritance pattern.

Explanation:

Cystic fibrosis (CF) is a condition of genetic origin, which affects organs such as the lungs, pancreas, intestine and liver. CF is characterized by the production of very thick and viscous mucus, and promotes the formation of cysts and fibrosis of the affected organs.

CF is an inherited disease that is transmitted in an autosomal recessive pattern, that is, the altered gene is required to be on both chromosomes of the allelic pair, in order to be expressed.

It is a very common disease in Caucasian individuals, especially those of European descent.

7 0
2 years ago
What format is typically followed with a hypothesis
galben [10]

Answer:

Basic Format

Explanation:

3 0
3 years ago
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Amino acids share a chemical backbone of?
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Answer:

carbon, hydrogen, nitrogen and oxygen

Explanation:

mostly, combination of carboxylic and amine groups

6 0
3 years ago
When assisting a child with ventilation:
Zolol [24]
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Based on my First Aid classes the answer is D. All of the above.
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7 0
3 years ago
The ability of one person to produce over a million different antibody molecules does not require over a million different genes
Tema [17]

Answer:

DNA rearrangment.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

The human somatic cell is made up of 46 chromosomes which are sub-divided into 22 pairs of autosomes and a pair of sex chromosomes (X and Y). An autosome is one of the numbered chromosome that is typically not a sex chromosome.

On the other hand, sex chromosomes (X and Y) are responsible for determining the gender or sex of living organisms such as humans.

Deoxyribonucleic acid (DNA) is an organic complex-molecular structure found in all living organisms. It comprises of genes and is essentially the foundation block of all living organisms such as humans, animals and plants.

DNA rearrangment can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.

Hence, the ability of an individual to produce over a million different antibody molecules doesn't require the use of over a million different genes; rather, this wide range of antibody production is due to deoxyribonucleic acid (DNA) rearrangment.

6 0
2 years ago
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