Science 7. Advanced 16 -17


Two blue flowers are crossed. One is homozygous and one is heterozygous for flower color. If blue is the dominant allele and white is recessive, what will be the ratio of colors in the offspring plants? Which of these choices is correct?


1 white: 3 blue

4 white: 0 blue

2 white: 2 blue

0 white: 4 blue


Which of the following is NOT an example of a complex pattern of inheritance?


incomplete dominance

Punnett square

multiple alleles

polygenic inheritance


Which of the following is NOT part of a chromosome?


proteins

cell

deoxyribonucleic acid

DNA


Proteins are made with the help of _____.


DNA

RNA

PNA

MNA


Each of the following is a form of mutation EXCEPT _____.


replication

substitution

insertion

deletion


If two people are heterozygous for cystic fibrosis, what are the chances that their children will have the disease?