Answer:
here are two alleles for freckles describes the presence of freckle in one of the sibling.
Explanation:
Freckles are the dominant trait in the human.
There are two alleles for a gene on the homologous chromosome responsible for the trait to be with freckle or no freckles.
In the situation when one child can have and other does not have freckle it shows that parent are heterozygous for the freckle gene.
In heterozygous form one allele will be of dominant and other is of recessive nature.
The cross between the heterozygous parents is shown as:
F f
F FF Ff F is freckle f= no freckle
f Ff ff
From the punnet square it can bee seen that there is 25% chance of no freckle in a sibling when both the parents have freckle.
Other chance is if one of the parent is heterozygous and dominant and the other parent is recessive. From the punnet square
F f
f Ff ff
f Ff ff In this case 50% chance of no freckles in offspring.
So in either case chance of no freckled child is there.
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Answer:
organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
Mark as brainliest
Genotypes are one's genetic traits, such as dominant and recessive, AA versus aa, or Aa for example. Phenotypes are physical characteristics, such as being tall or short... One's genotype determines one's phenotype.
<h3><u>Answer;</u></h3>
B.introduced species
<h3><u>Explanation;</u></h3>
- <em><u>Animals become extinct for a number of reasons. Currently many animals are endangered or have become extinct due to human activities or human influence.</u></em>
- Extinctions may be caused by reasons;<em><u> such as pollution; loss of habitat due to human activities such as agriculture, introduced species, hunting and poaching for meat and other animal products such as feathers, horns and skins, and also over-harvesting among other influences.</u></em>
- In this question; <em><u>Introduced species occupies the largest percentage, that is 39%, from the pie chart (Attached).</u></em>
- Hunting and poaching; 23 %, Habitat loss; 26%, and Others; 2%.