Answer:
Cells have flagella – long tail-like structures that help the cell to move around.
Cilia are used for locomotion in isolated cells, such as certain protozoans
Which of the following could be a physical hazard exists?
A.) shigella Bacteria
B.) Plastic packaging
C.) All purpose flour
D.) Mold
The answer is the option B. 4%
To have two copies of the recessive a allele, consider acquiring the a allele twice as two independent events (multiply probabilities).
(.2)(.2) = .04 = 4%
Answer:
Cell theory states that:
1. All living organisms are made up of one or more type of cells.
2. Cells are the basic structural and organizational unit of all organisms.
3. All cells come or arise from the pre-existing cells.
Hence, the correct answer is Living organisms are not created spontaneously i.e. they arise from pre-existing cells.
Other options can be excluded as: organisms can be unicellular also, cells have different structure and function (such as muscle cell, nerve cell etc). Lastly, cells are found in living organisms only.
Answer: GCTTAC
Explanation: Adenine (A) always pair with thymine (T), guanine (G) always pair with cytosine (C).
So when DNA replicates, complementary strand always recognizes the bases of the template strand in this manner. DNA polymerase helps in the synthesis of two strands in pair.