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Oliga [24]
3 years ago
9

Which discovery did not contribute to cell theory?

Biology
2 answers:
Bess [88]3 years ago
6 0

B is the correct answer. There are three parts of the cell theory. They are A, C, and D

sweet [91]3 years ago
5 0

The correct choice is the 2 one

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What is the name for the substance that is chemically changed by an enzyme?
Kazeer [188]

Answer:

A substrate

Explanation:

4 0
2 years ago
If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited?
Len [333]

Answer:

d) passage of a solute against its concentration gradient

Explanation:

When a solute is transported against its concentration gradient, the cells use metabolic energy. To move a substance from the region of its lower concentration to that of its higher concentration, the energy of ATP hydrolysis is utilized. These types of transport mechanisms are called active transports. If ATP hydrolysis is inhibited in a cell, it would not be able to perform the uphill movement of solutes due to the lack of any source of energy to drive the process.

6 0
3 years ago
What are three examples of evidence that complex biological molecules such as DNA could have formed naturally on Earth? (2 point
Anni [7]

Answer:

the abiogenesis theory helps us understand

Explanation:

6 0
1 year ago
In a _______ cross, the chance of the dominant phenotype showing up in one of the offspring is 3/4. dominant monohybrid dihybrid
MAXImum [283]
In a dominant cross, the chance of the dominant phenotype showing up in one of the offspring is 3/4, since the dominant genes are being shown here. 
7 0
3 years ago
Suppose "A" is a dominant gene for the ability to taste phenylthiocarbamide and "a" is a recessive gene for the inability to tas
dexar [7]

Complete question:

Suppose "A" is a dominant gene for the ability to taste phenylthiocarbamide and "a" is a recessive gene for the inability to taste it. Which couples could possibly have both a child who tastes it and a child who does not?​

a. father AA, mother aa

b. father Aa, mother AA

c. father Aa, mother Aa

d. father AA, mother AA

Answer:

c. father Aa, mother Aa

Explanation:

According to the given information, the ability to taste phenylthiocarbamide is a dominant trait and is imparted by the allele "A". This phenotype would be expressed in both homozygous and heterozygous conditions. The non-taster phenotype would be expressed in the homozygous recessive genotypes only.  

To have both taster and non-taster children, both the parents should have at least one copy of the recessive allele. Among the given options, the father with genotype Aa and the mother with genotype Aa have the possibility to have both taster and non-taster children.

Aa x Aa= 3/4 taster (1/4 AA and 1/2 Aa): 1/4 non-taster (1/4 aa)

4 0
3 years ago
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