AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

THE HUMAN GENOME

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where do genes come from?
A
The mother
B
The father
C
Both parents
Explanation: 

Detailed explanation-1: -To form a fetus, an egg from the mother and sperm from the father come together. The egg and sperm each have one half of a set of chromosomes. The egg and sperm together give the baby the full set of chromosomes. So, half the baby’s DNA comes from the mother and half comes from the father.

Detailed explanation-2: -5Summary points. Your genome is inherited from your parents, half from your mother and half from your father. The gametes are formed during a process called meiosis. Like your genome, each gamete is unique, which explains why siblings from the same parents do not look the same.

Detailed explanation-3: -Genes come in pairs. Each person receives one copy of a gene pair from his mother and one from his father. Even though you get half of your genes from your mother and half from your father, each of your parents contributes to all your traits. For the each trait, there are different versions of a gene.

Detailed explanation-4: -All men inherit a Y chromosome from their father, which means all traits that are only found on the Y chromosome come from dad, not mom. The Supporting Evidence: Y-linked traits follow a clear paternal lineage.

Detailed explanation-5: -First off, each child will pretty much get the same number of genes from dad. Boys and girls will get a slightly different set, but these genes won’t affect the sort of traits you are talking about. And all the sons will all get the same number of dad’s genes. And the same goes for all the daughters.

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