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2 years ago

Suppose you cross a true-breeding blue flower with a true-breeding

Biology

2 answers:

ludmilkaskok [199]2 years ago

3 0

Answer:

The blue allele is dominant to the yellow allele.

Explanation:

The blue allele is dominant to the yellow allele, because there is more of the blue allele than the yellow allele.

Dominik [7]2 years ago

3 0

Answer:

The blue allele is dominant to the yellow allele.

Explanation:

This is a cross involving a single gene coding for flower colour in a particular plant. The flower colour gene possesses two alleles viz: blue allele (B) and yellow allele (b). A truebreeding plant is that which produces only one type of offspring and contains the same allele for a particular trait (colour in this case).

According to the question, a truebreeding blue flower (BB) is crossed with a truebreeding yellow flower (bb) to produce an all blue-flowered offspring in the F1 generation. This is because the blue allele (B) is dominant over the yellow allele (b) in that gene i.e. the blue allele will mask the phenotypic expression of the yellow allele in the heterozygous F1 offsprings (Bb) that were produced.

In his law of dominance, Mendel called the allele that masks the expression of another like the blue allele in this question, DOMINANT allele while the allele that is phenotypically masked or covered up like the yellow allele in this case, RECESSIVE allele.

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Which describes one way that renewable resources differ from nonrenewable resources? Renewable resources make cleaner energy. It

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Answer:

Renewable resources make cleaner energy. It takes longer to replenish renewable resources. Renewable resources are more easily located and harvested. It often costs much less to produce energy from renewable resources.

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Answer
Protein is synthsized at ribosome
Reason:
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The intercellular material that holds plant cells together 1 cell cement 2. A septum which forms to separate the two new plant c

notsponge [240]

Answer:

1. The intercellular material that holds plant cells together (Cell Cement)

2. A septum which forms to separate the two new plant cells (Cell plate)

3. Material which makes up the structure of the cell wall (Cellulose)

4. play a role in the formation of the spindle during cell division (Centrioles)

5. Serves to trap the sun's energy for photosynthesis (Chlorophyll)

6. A packet of chlorophyll arranged in stacks within a plant cell (Chloroplast)

7. The pinching in of the animal cell during cell division (Cleavage furrow)

8. The new cells resulting from the division of the mother cell (Daughter cells)

9. channels for transporting molecules within the cell (Endoplasmic reticulum)

10. The reproductive cells in sexual reproduction (Gametes)

11. Involved in producing and packaging secretions (Golgi Bodies)

12. The process involving the division of the nucleus in a reproductive cell (Meiosis)

13. The process involving the division of the nucleus of a body cell (Mitosis)

14. The cell that is about to undergo binary fission (Mother cell)

15. Makes up the structure of the ribosomes (rRNA)

16. Substances produced by the Golgi bodies (Secretions)

17. The fibers which direct the even distribution of chromosomes (Spindle)

Explanation:

Plant cells: (1,3,5,6)

Plant cells differ from animal cells in several ways.

Cell wall: One of the most defining one is plant cells have cell walls. These cell walls are rigid and they cover the plasma membrane of the plant cell. Cell walls have 3 layers and the outermost one is called the middle lamella, which is the cell cement. It acts like a cement because it is what holds one plant cell and the adjacent cells together. The middle lamella is made up of pectin.

The cell wall also has layers made up of cellulose, which happens to be a macromolecule as is the most abundant of its kind on Earth. They form bundles called microfibrils.

Chlorophyll: Chlorophyll are molecules found in plant cells that play a role in food production in plants. Chlorophyll absorbs sunlight which is used in the process of food making called photosynthesis, along with other elements like water and carbon dioxide. Also chlorophyll gives the green pigmentation of plants.

Chloroplast: Chlorophyll are encased in an organelle called chloroplast. Chloroplasts are where photosynthesis takes place. They are found in the leaves of plants. Because they use chlorophyll, the are also green.

Other parts of a cell: (4, 9,11.15, 16, 17)

Both plant and animal cells also have similar organelles.

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Centrioles: Centrioles are small, cylinder-shaped organelles that aid in cell division. They are made up of the protein, tubulin. These centrioles produce spindles or spindle fibers that pull on the chromosomes during cell division and split them up.

(CONTINUED IN THE ATTACHMENT)

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