Mafic rocks are rich in iron and magnesium. Felsic rocks are rich in the mineral silicon and aluminum
Answer:
by combining the DNA of two different organisms
Explanation:
Recombinant DNA is when researchers edit a gene to contain a novel sequence, such as one from another organism
A good example of this in the lab is when scientists combine genes with a fluorescent gene called green fluorescent protein, GFP. This is from jellyfish. The gene sequence can be tracked on to the end of a gene of interest in a cell population or organism. When the gene is transcribed and translated, the GFP sequence will also be transcribed and translated. This means it will be fluorescent green and easy to track and visualise in cells.
Speed = frequency x wavelength
100 x 0.2 = 20
Answer: Male and female gametes are involved.
Explanation: Asexual reproduction is a type of reproduction in which one or more offspring is produced from a portion of a single parent without the involvement of the gametes or sex cells. It promotes rapid multiplication in many organisms and reduces the chances of introducing more variations into a population. Types of asexual reproduction include budding, fragmentation, spore formation and fission.
Answer:
The correct answer is option D, that is, bottleneck effect.
Explanation:
A phenomenon, which occurs due to events like earthquakes, floods, or other natural calamities that result in the severe declination in the size of a particular population is known as the bottleneck effect. The bottleneck effect is an extreme illustration of genetic drift that results in the reduction of a population's genetic variability.
With the decline in the size of a specific population, a reduction in the genetic variability of the same population is witnessed due to the loss of alleles. This eventually makes the population vulnerable to pollution and diseases. Hence, the given case is an example of the bottleneck effect.
