To feed on.
You do know there's a cool thing called Google, right?
Answer:
<em>The genotypic ratio of the F1 generation is: </em>
1:1 OR 50% heterozygous wire-haired, 50% homozygous smooth-haired.
<em>The phenotypic ratio of the F1 generation is:</em>
1:1 OR 50% wire-haired, 50% smooth haired.
Explanation:
A cross between the parents with genotype:
Parent 1; Ss and Parent 2; ss, will yield two types of progeny. Half the offspring in the F1 generation will be heterozygous wire-haired just as in parent 1, while the other half will be homozygous short-haired as in parent 2.
Demonstrating it with a punnet square:
S s
s Ss ss
s Ss ss 2/4 offspring: Ss,
2/4 offspring: ss
Since the allele for wire hair is dominant over that of short hair, the presence of one dominant allele, translates into the offspring having wire hair phenotypically or by physical assessment. The offspring who are homozygous for the recessive allele however, express short hair because they carry both alleles for short hair.
Respiration takes place when we inhale and exhale
The answer is between A and C.
Answer: Yes, estimation of a population of plant species in a given area. The tool I used was a QUADRAT.
Explanation:
Plants in a small area are easy to count and their distribution is recorded on a map or scale diagram for the area. For larger areas, quadrats are used to obtain a fairly accurate estimate of the number and types of plants in those large areas.
The ESTIMATION of the population of plants can be done using a method called the quadrat sampling method. Here, a QUADRAT which is a rectangular or square frame(tool) made from thick wire, is thrown at random several times. On each landing, the area covered by if is observed. The type of species and their number within the quadrat are recorded. The average number of times each species appears is calculated and the most frequent or dominant species is then determined.
Some quadrats are specially made to mark off an area for the study of seasonal variations of plants. They are sturdier, larger and permanent and can thus serve their purpose through the seasons. These quadrats often have a mapping grid attached so that the flora within it can be mapped at regular intervals.