Pour chacun des changements d'état donnés, indique le nom du changement inverse.

What flowers usually have either three petals or a multiple of three petals?

lana66690 [7]

A monocot flower has 3 petals.

6 0

3 years ago

Match each item in the left column with the single most appropriate item in the right column. Each number should be used only on

Leya [2.2K]

Answer:

A. Auxotroph 4. requires at least one nutrient for growth

B. Conjugation 1. requires cell-to-cell contact

C. Hfr 6. E. coli strain with Ffactor integrated into bacterial genome

D. Transduction 7. requires virus

E. F' 5. F factor that has picked up a piece of the bacterial genome

F. Transformation 3. uptake of DNA from external medium

G. Competent 2. capable of taking up DNA

Explanation:

Auxotrophs are those organisms able to synthesize organic compounds required for their growth.

Conjugation is the genetic transfer between bacteria through cell-to-cell contacts.

In bacteria, the Hfr chromosome is linearly transferred from F to F- cells.

Transduction is a genetic process where exogenous DNA fragments are introduced into another cell via a viral vector.

The F factor (fertility factor) is a bacterial plasmid that allows to transfer genetic information between donor and recipient cells during conjugation.

Bacterial transformation is the horizontal transfer of genetic material by which bacteria obtain DNA from its environment.

In bacteria, competence refers to the ability to take up exogenous DNA from the external environment.

3 0

3 years ago

1. The Himalayas in South Africa are an example of what type of plate boundary?

AleksAgata [21]

Answer -
1. <span>Convergent continental-continental boundary.
2. Convergent oceanic-oceanic boundary.
3. Convergent oceanic-continental boundary.
(Confidently Correct)

Reason -
Each different reasoning for
1.Its continental boundary is because its crashing into each other like a collision forming the Himalayas.
2.The lithosphere is pushing down where as the other side is acting on it making it go and move down.
3. This type of oceanic and oceanic boundary is one place is moving upward where as the other one is moving down.

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