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shutvik [7]
3 years ago
8

Select the correct answer from each drop-down menu.

Biology
1 answer:
Luda [366]3 years ago
8 0

Answer:

sorry I dont really understand the question

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An example of a scientific investigation design using iv and dv
vagabundo [1.1K]

An example of a scientific investigation design that uses independent variable and dependent variable in its design is a research that seeks to find out the effect of two different fertilizers on the growth of a tuber crop (yam). The independent variable in this case is the type of fertilizer used while the dependent variable is the corresponding growth of the tuber crop. In a research set up, the independent variable is the variable that causes a change in the dependent variable and the dependent variable is the one that is been measured.

3 0
3 years ago
Why meiosis produces haploid cells
SashulF [63]

Answer:

Cells are haploid because homologous pairs of chromosomes have been segregated. However, each chromosome is double stranded, having two sister chromatids due to DNA replication before meiosis began.

5 0
3 years ago
What is the significance of meiosis with respect to sexual reproduction?
stiks02 [169]
What are you showing me here I hope you got the question correct my friend . 
5 0
3 years ago
I actually have a question this time = w = Please help me!
Citrus2011 [14]

Answer:

All the answers <u>EXCEPT</u> 'No crossing-over occurs during meiosis'

Explanation:

With the unlikely possibility of a mutation that causes the inversions of chromosomes during 'crossing-over', the inversions does not necessarily have obvious or visible effects on the individual. The only problem that it has is cause issues with meiosis. The process of crossing over will occur regardless of the order in chromosomes and DNA. But the only problem is that it will result in gametes missing or known as (deleted). We know that Meiosis is related to the cell division of sex cells known as gametes. So if problems arise in meiosis with mutations in crossing over, the chance to conceive a child (off-spring) will also be reduced. And finally because the DNA and inversions (mutations) have occurred, this will continue to duplicate during meiosis. Causing more and more mutations.

Sorry for late reply. Hope this helps!

FUN FACT: Only 2% of the population have these mutations.

5 0
3 years ago
Match the call structure with the best description. Each cell structure matches with exactly one description.
Makovka662 [10]

Answer:

Please find the cell structure with their best descriptions below

Explanation:

1. Capsule: Capsules are one of the Glycocalyx that firmly attaches to the cell surface and helps the cell avoid phagocytosis.

2. Slime layer: Slime layer is the other Glycocalyx that is loosely attached to the cell surface and helps the cell prevent dessication.

3. Flagella: The flagella is a long whip-like cell structure found in bacteria and some protists and principally used for moving.

4. Conjugation pilus: Conjugation pilus is a cell structure in bacteria that is used to transfer DNA to another bacteria cell.

5. Fimbriae: Fimbriae is a short, bristle-like protein that project from cell surface and help cells attach to surfaces of other cells.

6. Cell wall: Cell wall is a cellular structure found in plant cell and bacteria cells, whose function is to protect cells from harsh conditions and helps maintain cell shape.

7. Cell membrane: The cell membrane controls passage of substances into and out of the cell.

8. Cytoplasm: The cytoplasm is a gelatinous material found inside the cell.

9. Inclusions: Inclusions are structures in cells that formed from the deposits of nutrients.

10. Endospores: Endospores are structures that protect bacterial genome in a dormant state under adverse environmental condition.

11. Ribosomes: Ribosomes are organelles in a cell that makes polypeptide (protein).

12. Mycolic acid: Mycolic acid is a waxy molecule (long fatty acid chain) that is found in some gram positive bacteria and associated with their cell wall.

13. Nucleoid: A nucleoid is a region in prokaryotic cell where chromosomal DNA and DNA-associated proteins are concentrated.

14. Pili: Pili is similar to the Fimbriae but longer and contain less numerous protein appendages than fimbriae used in attachment.

7 0
4 years ago
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