Answer:
If twins are a boy and a girl, clearly they are fraternal twins, as they do not have the same DNA. A boy has XY chromosomes and a girl has XX chromosomes. Girl-boy twins occur when one X egg is fertilized with an X sperm, and a Y sperm fertilizes the other X egg.
Explanation:
the answer will be c because it cant work out the exact as their are other miner factors involved so it will be the average
The answer is B because:
Cell walls are made of cellulose and proteins (hence II).
Animal cells don't have cell walls (only cell membrane) but plant cells do so IV
They must be semipermeable since materials for example carbon dioxide and water for photosynthesis have to go into the cell <em>some</em> way.
Mendelian, monogenic or monofactorial heredity is used to characterize disease transmission due to a mutation in a single gene. This mode of transmission follows the laws of Mendel, which explains the use of the term "Mendelian".It is inherited by syngamy and then karyogamy of maternal and paternal genomes at the time of fertilization.
1. <span>The different possible outcomes are:
The parents: MB MB
The children: MM Mb Mb b
2. </span><span>The probability that a child of these parents will have the blond divided by blond genotype:
MM Mb Mb bb ==> 2/4 ==> 50%
</span><span>3. The probability that the child will have brown hair color:
</span>MM MB MB BB ==> 3/4 ==> 75%
They contain genetic information and assist in making proteins
