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d1i1m1o1n [39]
3 years ago
13

What is spirogyra in biology​

Biology
1 answer:
ehidna [41]3 years ago
4 0

Answer:

Spirogyra is a genus of green algae that belong to the order Zygnematales. These free-flowing, filamentous algae are characterized by ribbon-shaped chloroplasts that are arranged in a helical manner inside the cells. So the name is derived from the spiral arrangement of chloroplasts in these algae.

Explanation:

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puteri [66]

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8 0
4 years ago
Griffiths (1928) mixed heat-killed "S" bacteria with "R" bacteria and injected a mouse with both types of bacteria. As a result,
Serjik [45]

Answer:

transformation

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Transformation is one of the three methods of genetic recombinant in bacteria. The other two are transduction and conjugation. Transformation occurs when the bacterial cells take up the DNA and which in turn changes their phenotype.

Transformation requires that there should not be any cell to cell contact. In the experiments performed by Griffith, the heat-killed virulent S strains were mixed with live R strains. The R strain took the DNA of heat-killed S strains which in turn converted them into the virulent strains. Since this horizontal gene transfer did not include any cell-to-cell contact, he called the process transformation.

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3 years ago
Why is facilitated diffusion a type of passive transport? ​
Ghella [55]

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Explanation:

3 0
3 years ago
In 1998, the U.S. Food and Drug Administration approved the nation's first commercial surgical glue to control bleeding during c
alexandr1967 [171]

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Explanation:

4 0
4 years ago
What are the accessory organs of the digestive tract?
AlekseyPX

Answer:

tongue, salivary glands, pancreas, liver, and gallbladder.

Explanation:

hope this helpss :)

6 0
3 years ago
Read 2 more answers
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