Grade 9 Science PAT Prep

The offspring from asexually reproduced organisms are?

• Different than their parents
• Identical to parents
• Like a combination from both parents
• A different species

This is when a new organism grows by cell division on the body of its parent. The bud, or offspring is identical to the parent. The bud, when large enough, can break off of the parent and live on its own.  Examples of this include yeast, hydra and potatoes.
 

• Regeneration
• Vegetative propagation
• Fission
• Budding

Coat color in a dog breed is determined by incomplete dominance where three colors are produced (Brown, tan and white), and the brown coat allele (B) has incomplete dominance over the white coat allele (b). Which offspring ratio would be expected from a cross between a brown dog and a white dog?

• A. 2 BB: 2 Bb

• B. 4 Bb

• C. 1 BB: 2 Bb: 1 bb

• D. 2 BB: 2 bb

Which of the following is heterozygous

• FF
• tt
• Gg
• RR

Which of the following is homozygous recessive?

• rr
• AA
• TT
• Ff

Before cells can divide, what must be copied?

• mitochondria
• cytoplasm
• DNA
• Cell Wall

According to the graph, what is causing the deer population to decrease

• They got sick

• The wolf population is decreasing

• The wolf population increased

• They ran out of food

The smallest unit of an element that retains the properties of that element is called a(n)

• Element

• Compound

• Atom

• Molecule

Which of the following is NOT a pure substance?

• Element

• Compound

• Mixture

• Molecule

Which of the following is NOT a potential sign of chemical change?

• Change in odor

• Boiling

• Fizzing

• Change in color