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Aleks04 [339]
3 years ago
7

Which of the following reactions is used to radioactively label DNA?

Biology
2 answers:
swat323 years ago
8 0
The synthesis of new DNA. Only a<span> radioactive probe will get attached to the single strand and then show their presence</span>
DerKrebs [107]3 years ago
4 0

The synthesis of new DNA. Only a radioactive probe will get attached to the single strand and then show their presence

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Hairlessness in American rat terriers is recessive to the presence of hair. Suppose that you have a rat terrier with hair. Expla
Reil [10]

Answer:

By performing a test cross i.e. a cross with a recessive trait

Explanation:

According to the question, hairlessness is a recessive trait, meaning that it will only be expressed in a homozygous condition i.e. when there are two recessive alleles in the genotype. Presence of hair is dominant, meaning that it will mask the phenotypic expression of hairlessness allele in a heterozygous state. Hence, a dominant phenotype can either be homozygous (same dominant allele) or heterozygous (combination of dominant and recessive alleles).

In order to determine which of these genotypes the dominant phenotype possess, we perform a test cross. A test cross is a cross performed to determine the genotype of the dominant organism by crossing it with a homozygous recessive genotype.

Ideally, the offsprings resulting from the cross will all be phenotypically dominant if the organism in question is homozygous dominant but if the organism is heterozygous dominant, the offsprings will occur in an equal ratio of dominant to recessive phenotypes.

So in this case, all of offsprings of this cross between the rat terriers will possess hair if the dominant rat terrier dog is homozygous, but if the dominant rat terrier dog is heterozygous, an hairless offspring will be produced.

8 0
3 years ago
Choose one property of water that makes it unique. Describe the property and explain the chemical or or physical reason that cau
vazorg [7]

mane ian really kno wat to tell u g

7 0
2 years ago
1. Which of the following is a monera cell lacking?
slega [8]

Answer:

c) nucleus

Explanation:

Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization (having no nuclear membrane), such as bacteria

7 0
2 years ago
Read 2 more answers
____ has the highest affinity for electrons while _____ has the lowest affinity for electrons.
77julia77 [94]

Answer:

The answers are Fluorine and Francium.

Explanation:

Fluorine has the highest affinity for electrons while Francium has the lowest affinity for electrons. This can be measured by the electronegativity of each one, where Fluorine is the most electronegative element. This can also be seen by the accommodation of elements in the periodic table.

6 0
3 years ago
28.
Sedaia [141]
The proper way to cool a large stockpot of clam chowder is to divide the clam chowed into smaller containers and place them in an ice-water bath.
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3 years ago
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