Answer:
1. Incomplete dominance has occurred
2. A phenotypic ratio 1 Blue : 2 pale blue : 1 white will be obtained.
Explanation:
Mendelian principle states that one allele is capable of masking the expression of another i.e. one allele is dominant and the other one is recessive. Genetic scenarios that have gone against this principle has been observed. One of them is the concept of INCOMPLETE DOMINANCE, which is a case where one allele is not completely dominant over the other, hence, they combine to form a third intermediate phenotype different from both parents.
This is the case in the question where the the blue allele (B) fails to completely dominate the white allele (W), instead it forms an heterozygous plant (BW) with a different phenotype (pale blue) that is a blending of the two parental phenotypes (blue and white). This heterozygote (BW) is formed in the F1 generation.
If the F1 offsprings (BW) are self-crossed, four possible offsprings will be produced using a punnet square. This offsprings will have genotypes: BB, BW, BW, and WW. This depicts a genotypic and phenotypic ratio of 1:2:1 i.e. 1 blue (BB) : 2 pale blue (BW) : 1 white (WW).
They used to group organisms by watching their physical characteristics. For example animals with spines are grouped into vertibrates and organisms without spine are grouped into invertebrates . They also group organisms based on habitatats ( where the organisms live) . For example marine animals live in water and terrestrial organisms live in land. They grouped organisms based on their feeding behaviour. For example producers produce their own food.
Answer: Species May share the same anatomy. Also observing DNA can show likeness with one another.
Explanation:
HURRY
Answer:
it is difficult to change the habit of using the resource
Explanation:
Gasoline for example is a convenient energy source and because it is convenient and relatively cheap it is hard to stop using it.
Answer:
d
Explanation:
It is difficult to change the habit of using the resource.
The purpose of ethical guidelines for handling of experimental subjects is to ensure the safety and well-being of all living creatures in an experiment.
Ethical guidelines include issues such as human rights, animal welfare, safety compliance with the law, conflicts of interest, health standards..
Ethical guidelines are the norms for the acceptable and unacceptable behaviors of the researchers.
Answer: To ensure the safety and well-being of all living creatures in an experiment
Explanation:
The areas of texture, appearance and the type of pressure applied during crystallization determines whether a metamorphic rock is foliated or non-foliated. Foliated rock is formed if the pressure applied to the recrystallizing rock is unequal. If the pressure applied to the recrystallizing rock is equal all over, a nonfoliated rock will be created.
Answer: Option (C) is the correct answer.
Explanation:
A force is defined as the strength applied on an object to displace it from its initial position.
This, force applied to move the object is known as work.
Mathematically, W = F × d
where W = work done
F = force
d = displacement or distance moved
Thus, we can conclude that the statement forces are defined by both strength and direction, is true about forces.
Answer:
C
Explanation:
The direction and strength affect the force