Answer:
Testcrosses clarify linkage because each phenotypic class of progeny corresponds to each gamete type produced by the dihybrid parent.
Explanation:
- A test cross involves the crossing of an individual with another phenotypically recessive individual so as to determine the zygosity of the former by analyses of the proportions of offspring phenotypes.
- In order to determine linkage, the test cross shows that if the parentals are more than the recombinants, we can say that the two genes such as b and c are genetically linked and therefore, they must be on the same chromosome.
- Also, the test-crosses help to find out which alleles came from which parent.
- By setting up testcrosses in which one parent is homozygous for the recessive alleles of both genes,we can analyze the gene combinations received in the gametes from the other, doubly heterozygous parent.
I would probably drink a small amount of ocean water in 20 monute intervals, to not over dehydrate myself. This would probably give me enough time to go find other sources of water on the island (eg. coconuts) tp get clean water. In my opinion, this would be a better option than drinking contaminated fresh water. There is a higher risk of getting infected by the bacteria in the water, which would be why its better to take the contaminated fresh water only as a last resort option.
I'm not really sure what I just typed but hopefully it makes some kind of sense to you☺
Our solar system consists of one smallish star (the sun), eight planets, a few billion a astroids and a few more billion comets.
Answer:
<em>The correct option is b) exponential growth curve</em>
Explanation:
A J-shaped curve can be described as a curve on a graph which represents the phase of exponential growth. During this phase, the population of a certain organism expands rapidly in an exponential manner unless it is stopped due to some factor such as environmental resistance. A J-shaped curve will usually be seen in a new environment when the number of resources is more in the environment to support the growth of the population.
