AP BIOLOGY

HEREDITY

THE PEDIGREE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many kids did the mother and father from the first generation have?
A
2
B
4
C
5
D
6
Explanation: 

Detailed explanation-1: -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: -A family consisting of a mother, father, and biological children is known as a nuclear family. The nuclear family is one of the smallest family units.

Detailed explanation-3: -You receive 50% of your genes from each of your parents, but the percentages of DNA you received from ancestors at the grandparent level and further back are not necessarily neatly divided in two with each generation.

Detailed explanation-4: -We get 23 chromosomes from our mother and 23 from our father for a total of 46 chromosomes. Each chromosome has very specific chapters that tell the cell what kinds of characteristics you will have (like eye color and hair color). Each of these chapters that codes for a specific trait is called a gene.

There is 1 question to complete.