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3 years ago

When a honeybee pollinates a flower, the symbiosis would be _______

Biology

1 answer:

Sedaia [141]3 years ago

8 0

Answer:

The relationship between them is mutualism because both organisms benefit.

Explanation:

The honey bee gains nectar from the plant while the flower is pollinated.

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On the planet Kermit, in the Muppet population, there are two autosomal loci of interest. The first locus has alleles A and a, a

astra-53 [7]

Answer:

The values that most closely represent the expected number of Janice blonde-haired offspring is 252 individuals, option C.

Explanation:

Available data:

Two diallelic genes acting in a recessive epistatic manner to express hair color
Allele A is dominant over the allele a
Allele B is dominant over the allele b
A_B_ Cookie monster blue
aaB_ Elmo red
__bb Janice blonde

When talking about epistasis, we are referring to an interruption. These are interactions between genes located in different loci in the same chromosome. An epistatic gene can alter, influence, or suppress the expression of a hypostatic gene. When the epistatic gene is recessive, the interaction is known as recessive epistasis.

Observing the altered phenotype proportions of the offspring can reveal which interaction is operating in the trait determination.

In recessive epistasis, the proportion is 9:3:4.

Cross: Between two doubly-heterozygous

Parentals) AaBb x AaBb

Phenotype) Cookie-monster blue-haired individuals

Gametes) AB, Ab, aB, ab

AB, Ab, aB, ab

Punnett square) AB Ab aB ab

AB AABB AABb AaBB AaBB

Ab AABb AAbb AaBb Aabb

aB AaBB AaBb aaBB aaBb

ab AaBb Aabb aaBb aabb

F1) 1000 individuals

9/16 individuals are expected to be Cookie-monster blue-haired, A-B-

3/16 individuals are expected to be Elmo Red, aaB-

4/16 individuals are expected to be Janice blond, A-bb + aabb

16 ------------------------------------------- 1000 individuals

4 Janice blond individuals ---------- X = 250 individuals

So, 250 individuals are expected to be Janice blonde. The observed number might vary a little bit from this value. The values that most closely represent the expected number of Janice blonde-haired offspring is c = 252 individuals

5 0

3 years ago

Which statement is TRUE regarding the glycolytic pathway?

Westkost [7]

Answer:

d) All of the statements are true.

Explanation:

 It includes reactions catalyzed by three isomerase enzymes.

The statement is true because:

The first reaction which involve isomerase is the conversion of glucose 6-phosphate into fructose 6-phosphate with the help of an enzyme phosphoglucose isomerase.

The second reaction is conversion of dihydroxyacetone phosphate (DHAP) into glyceraldehyde 3-phosphate with the help of an enzyme triphosphate isomerase.

The 3rd reaction is conversion of 3-phosphoglycerate to 2-phosphoglycerate.

It includes five phosphate transfer reactions.

The statement is true because:

1. The conversion of glucoe to glucose 6-phosphate.

2. The conversion of fructose 6-phosphate to fructose 1,6-biphosphate.

3.The conversion of glyceraldehyde 3-phosphate to 1,3-biphosphoglycerate.

4. The conversion of 1,3-biphosphoglycerate to 3-phosphoglycerate.

5. The conversion of phosphoenol pyruvate to pyruvate.

It includes three enzymes that are regulated by product inhibition.

The statement is true because:

1. Hexokinase which is inhibited by its product glucose 6-phosphate.

2. Phosphofructokinase which is inhibited by ATP.

3. Pyruvate kinase which is also inhibited by ATP.

Thus, all the statements are correct.

6 0

3 years ago

Which cranial nerve transmits information about audition? which cranial nerve transmits information about audition? vestibulococ

ser-zykov [4K]

Answer;

-Vestibulocochlear

The cranial nerve transmits information about audition vestibulocochlear.

Explanation;

-The vestibular branch of the vestibulocochlear nerve transmits afferent impulses for the sense of equilibrium. The cochlear branch transmits afferent impulses for the sense of hearing.

-The vestibulocochlear nerve is responsible for both hearing and balance and brings information from the inner ear to the brain. This nerve determines the human sense of equilibrium.

7 0

3 years ago

How does the transcription of structural genes in an inducible operon occur? (A) It occurs continuously in the cell. (B) It star

-BARSIC- [3]

The transcription of structural genes in an inducible operon occur (B) It starts when the pathway's substrate is present.

Inducible operon is the one which works only when the stimulus is received by an inducer, enhancer or a positive regulator. Inducible operon consists of one or more structural genes. The example of inducible operon is lac operon.

Substrate is a chemical substance upon which any enzyme acts. It is a starting material for any process to begin. In operons as well, substrate acts as an inducer for beginning the process of transcription. In lac operon, lactose itself acts as a substrate for the transcription of the m-RNA coding for enzyme β-galactosidase.

To know more about inducible operon, here

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3 0

2 years ago

You learn that a dandelion is in the same kingdom as pine trees. Name three characteristics that these organisms share.

S_A_V [24]

They are both multi-cellular, autotrophs, and in the Plants kingdom.

6 0

3 years ago

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