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Papessa [141]
2 years ago
13

The diagram shown represents a pair of homologous autosomes. The letters B and b represents genes for a certain trait. These let

ters also represent …

Biology
1 answer:
Vesna [10]2 years ago
8 0

Answer:

A

Explanation:

The two genes are B and b are located in the same spot, therefore they are alleles or alternative forms of the same gene.

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In garden peas the allele for tall plants () is dominant over the allele for dwarf plants() A true breeding tall plant is bred w
marta [7]

Answer: This is called Monohybrid Experiment

Explanation: Monohybrid Cross

P Generation TT     *   tt

  Tall plants     Dwarf plants

F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

There are 100% Tt Genotype and 100% Tall plant Phenotype

F2 Generation

F1   *   F1

( Tt   *   Tt )

T t

T TT Tt

t Tt tt

In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

25% tt (homozygous recessive dwarf plants).

This is how dwarf characteristics reappear in the second generation.

The Phenotype of F2 generation is 3:1  (Tall : Dwarf)

I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
5 0
3 years ago
Define cell transport
katrin [286]

Cell transport is movement of materials across cell membranes. Cell transport includes passive and active transport. Passive transport does not require energy whereas active transport requires energy to proceed. Passive transport proceeds through diffusion, facilitated diffusion and osmosis. The purpose of the transport proteins is to protect the cell's internal environment and to keep its balance of salts, nutrients, and proteins within a range that keeps the cell and the organism alive.

3 0
3 years ago
16. Biomass is derived from___<br> and is used to produce____
Vitek1552 [10]

Answer:

Organic matter : biofuels

Explanation:

Biomass is derived from Organic matter in the soil and is used to produce Biofuels. Hope this helps

Please mark Brainlist

8 0
3 years ago
Ampicillin is a member of the penicillin family of antibiotics. what would happen to ampr bacterial strains if they were streake
artcher [175]

The amoxicillin and the ampicillin are known to degrade the cell wall. both of these antibiotics have β- lactam in their structure. The structure of the ampicillin and the amoxicillin is similar having a single difference at the 4th position of benzene ring. The structure of the amoxicillin have an addition OH or hydroxyl group at the 4th position in the benzene ring.

As the structure of ampicillin and amoxicillin is similar, the bacteria having ampicillin resistance can also show amoxicillin resistance.

MODE OF ACTION OF AMOXICILLIN:

The amoxicillin binds with the pencillin binding proteins, present in the bacterial cell wall. The binding of the amoxicillin inhibits the enzyme transpepetidase, which is an important enzyme for the synthesis of the cell wall. it also inhibit murine hydrolases and inhibit the assembling of cell wall.

The amoxicillin effects the cell walls of the bacteria, as the animals cells do not have cell wall, they only have a cell membrane, the increase in the dose would not effect the animal cell.

4 0
3 years ago
Availability of food: a. is dependent upon kin selection. b. can be highly variable, depending on season and rainfall. c. is det
Leya [2.2K]

Answer:

b. can be highly variable depending on season and rainfall.

Explanation:

3 0
3 years ago
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