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Lorico [155]
3 years ago
12

the process of dna replication requires that each of the parental dna strands be used as a ___________________ to produce a dupl

icate of the opposing strand.
Biology
1 answer:
Dovator [93]3 years ago
6 0

Answer:

cynical cubby cucumber Bobby cici

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Which of these statements is false? Veins always carry blood toward the heart. Veins can carry oxygen-rich blood. Arteries alway
Alex73 [517]

Answer:

Arteries never carry oxygen rich blood

Explanation:

This is totally wrong as most Arteries carry oxygenated blood away from.the heart to other organs and structures. Only the pulmonary artery carries deoxygenated blood to the lungs for oxygenation

7 0
2 years ago
How fast does an impulse takes a message to the central nervous system.
Ratling [72]

Hello.

The answer is: 119m/s

Some kinds of signals, like the ones for muscle position travel on extra-fast nerve impulses at speeds of up to 390 feet per second (119 meter/second).

Have a nice day

8 0
3 years ago
Read 2 more answers
____________ are cellular macromolecules containing hydrogen, oxygen, nitrogen, carbon and phosphorous.
dimulka [17.4K]
B. Nucleic Acids
Only Nucleic Acids contain phosphorus
3 0
3 years ago
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How is biodiversity related to the biosphere?
mr Goodwill [35]
Biodiversity is the different life forms and animals that exist on earth and the biosphere is where all of those life forms and animals live. <span />
4 0
2 years ago
Why are some diseases more common in certain groups of people, such as caucasians or African Americans
Anna71 [15]

Answer:

Some diseases are more common in certain groups of people, such as Caucasians or African Americans because individuals in such ethnic groups often share certain alleles (versions of their genes), that have been passed down to them from common ancestors and a particular genetic disorder may be more frequently seen in such groups if one of these shared genes contains a disease-causing mutation.

Explanation:

Some genetic diseases are frequently seen in certain ethnic groups like Caucasians or African Americans. Individuals in such groups often share certain alleles (versions of their genes), that have been passed down to them from common ancestors and one of these shared genes may contains a disease-causing mutation.

Examples of certain genetic disorders that are more common in particular ethnic groups include the Tay-Sachs disease, which is more common in people of eastern and central Europe (Ashkenazi), Jewish or French Canadian ancestry and the sickle cell disease, which occur among people of African, African American, or Mediterranean heritage.

Some genetic disorders are more common in people whose ancestry can be traced to a particular geographic area. The factors that can lead to development of populations with very different genetic allele frequencies include their geographic origin, selection, patterns of migration, historic events, etc. Certain natural barriers like oceans and other water bodies, high mountains, large deserts, or major cultural factors had prevented communication and interaction between people. So mating was restricted within the group, and this produces genetic marker differences and differences in the presence of specific disease-related alleles.

6 0
2 years ago
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