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nydimaria [60]
3 years ago
11

Which is the best definition of a cellular membrane?

Biology
1 answer:
Mrac [35]3 years ago
5 0
A cellular membrane separates the interior of all cells from the outside environment.
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(10 points) Marine Biology.
kolezko [41]

Answer:

Blank 1 is option 2 and blank 2 is option 1

Explanation:

8 0
3 years ago
What do restriction endonucleases do? what do restriction endonucleases do? they cut dna at specific sites, known as recognition
Nookie1986 [14]
Restriction endonucleases cut DNA at specific sites, known as recognition sites, to produces DNA fragments useful for cloning. Restriction enzymes or restriction endonucleases are DNA cutting enzymes found in bacteria. Each restriction enzyme recognizes one or a few restriction sites. When it finds its target sequence, it makes a double stranded cut in the DNA molecule. 
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3 years ago
All fungi can be called as?​
alisha [4.7K]
The correct answer is heterotrophs
The first answer on the top is wrong
7 0
3 years ago
Blood must travel through capillaries at a(n) ________ rate to assist with diffusion of fluid into the interstitial space.
kompoz [17]

Blood must travel through capillaries at a slow rate to assist with diffusion of fluid into the interstitial space.

Hope this helps!

3 0
2 years ago
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
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