Answer:
C
Explanation:
This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).
N.B: let F represent the gene involved.
A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.
A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.
The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff
The resulting four offsprings will
be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1
If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. An unbalanced force<span> (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion. A net force = unbalanced force. </span><span>If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant. the source i found this answer is, https://www.mansfieldct.org/Schools/MMS/staff/hand/lawsunbalancedforce.htm
and the author of the source is , Mr. Hand</span>
<span>B. HEMOGLOBIN. In sickle cell anemia, </span>the hemoglobin is mutated or abnormal and it gives the red blood cells a crescent shape. This abnormal hemoglobin is referred to as hemoglobin S.
It start out with one cell because Mitosis is a cell division of a single cell into two identical daughter cells. So, at the beginning of mitosis, there is only one cell.
The second option because solar energy is a renewable source which can be used again.
The third option because walking to work or school would mean that you aren’t using Carbon Dioxide (which is harmful to the environment)
And the 4th option because even though using trains and buses uses Carbon Dioxide, more people can go into one transportation (and it’s public) and they don’t need to use vehicles which is mostly for individuals (mostly only one person driving a car. No passengers)
