Answer:
Option (d).
Explanation:
Mutation may be defined as the sudden, heritable change in the nucleotide sequence of the organism. Mutation may occur due to the errors in DNA replication or may occurs due to the mutagens.
Joshua and Lederberg experiment explains that mutation is the non adaptive and random process that occur in the organism. He used the replica plating of E.coli and grows them on streptomycin drug. The bacteria was grown on the the primary plate and they are transferred to the secondary plate with streptomycin drug in the growth environment. The resistant strain of bacteria grows in the streptomycin environment.The pattern of bacteria growth on the plate explained that mutation occurs randomly and it is a non adaptive process.
Thus, the correct answer is option (d).
A wave with a height of 5 feet and a wavelength of 15 feet has a wave base of <u>7.5 feet</u>.
A. 7.5 feet
<u>Explanation:</u>
Wave base defines the depth of the water when it is in still condition.
Wave base is half of wavelength.
Wave base = wavelength/2
Given,
Wavelength = 15 feet
So, wave base = 15 feet/2 = 7.5 feet
When the wave height is divided by wavelength then it gives the steepness of the wave.
Therefore, the wave base is 7.5feet.
A cell membrane is c.selectively permeable because it regulates what materials enter the cell.
Answer:
interphase → prophase → metaphase → anaphase → telophase → cytokinesis
Explanation:
Base on the scenario been described in the question, Rahul looks at six unlabeled slides showing different stages of the cell cycle the correct Rahul to place the slides in order, starting with interphase is as follows
interphase → prophase → metaphase → anaphase → telophase → cytokinesis
This is the correct order Rahul should place the slides.
