Answer:
A. black fur and white fur
b. 50%
c. 50%
Explanation:
Answer:
The cerebellum (back of the brain) and the brainstem (middle of the brain)
Explanation:
Muscle movement coordination can be<em> voluntary</em> or <em>involuntary</em>. There are different sections of the brain responsible for the two;
- Voluntary movement of muscles is coordinated by the brainstem in addition to other functions such as sneezing, swallowing, vomitting, etc.
- Involuntary coordination of muscles is controlled by the cerebellum in addition to maintaining posture, balance and body equilibrium.
Hence, both the cerebellum and the brainstem are responsible for coordinating muscle movement.
I think that the answer is D
Sinistral and dextral are the two types of relative direction.
If the opening is on the left then the shell (Limnaea peregra) is left-handed, or 'sinistral'.
In most snails, shells are dextral .
dextral : on the right side or the right hand.
One of the classical examples of detailed relationship between maternal genotype and egg cytoplasm “phenotype” was studied in snails .
Looking into the opening of the shell it can be seen that in one strain the shell always coils to the left (sinistral) whereas in the other shell always coils to the right (dextral).
In the cross dextral (female) x sinistral (male) all the F, progeny have dextial coils that implies dextral is dominant over sinistral. However, in the F1 x F1 cross (i.e., inbreeding) all the F1 snails are also dextral. The reciprocal cross ( dextral (female)x sinistral (male)) produces F1 progeny that are all left coiler. In this case F1 x F1 cross also yields only dextral coils.
it is clear that coiling of snails is not determined by individuals own genes but by those of mother. The coiling is phenotype in the offspring is controlled by the genotype of the mother.
In simple words ,
when dextral female is crossed to a sinistral male : the result will be all dextral.
when sinistral female is crossed to a dextral male :the result will be all sinistral.
Answer: -70 mV
Explanation:
Assume a physiologist has inserted a microelectrode into a neuron when it is at rest. The voltage recorded at the arrow tip will be <u>-70 mV</u>.
