Bio Final NWCC Questions and Answers

Bio Final NWCC Questions and Answers

Question 1.
In a pedigree, what does a colored square represent?
Correct Answer: affected male

Question 2.
Pigments can either absorb or ___ wavelengths.
Correct Answer: reflect

Question 3.
Why did the leaf discs begin to float?
Correct Answer: they were producing oxygen

Question 4.
During which part of the cell cycle does the DNA replicate?
Correct Answer: S

Question 5.
Prophase 1
Correct Answer: Chromatin condenses to form visible chromosomes
Nucleus/olous disintegrate Homologous pair up to Titrads

Question 6.
In the leaf disc experiment, what was in the solution provided the carbon dioxide needed
for photosynthesis?
Correct Answer: baking soda

Question 7.
Which wavelength is poorly absorbed by the most pigments?
Correct Answer: green

Question 8.
The enzyme DNA ___________ is responsible for adding new DNA nucleotides during
replication.
Correct Answer: polymerase?

Question 9.
The mother has blood type "O," the father has blood type "AB", what are the possible
blood types their children can have?
Correct Answer: 50% A: 50% B

Question 10.
made by replication only in the nucleus --- A<C<U<G, single stranded, builds a protein
Correct Answer: DNA ---- RNA

, Question 11.
An offspring of parents whose genotypes are Aa and Aa may be
Correct Answer: AA, Aa, or aa.

Question 12.
If a corn plant has 20 chromosomes in its somatic cells, then what is the correct number of
cells, number of chromosomes and kind of cells it has at the end of meiosis I?
Correct Answer: 2; 10; haploid haploid-half meiosis-half mitosis- double **verify

Question 13.
What is uncoiled stringy DNA called?
Correct Answer: chromatin

Question 14.
Antonio is colorblind which is a sex-linked recessive trait. His partner Emilia is not
colorblind nor is she a carrier (heterozygote) for colorblindness. The offspring of this
couple would
Correct Answer: all have normal color vision.

Question 15.
In the DNA extraction experiment, which reagent was used as an emulsifier to release DNA
from cell and nuclear membranes?
Correct Answer: detergent

Question 16.
What is released from the chloroplast when water is broken down?
Correct Answer: Oxygen

Question 17.
In a simple dominant-recessive inheritance pattern, what percentage of the offspring
would exhibit the dominant trait if one parent is heterozygous and the other is
homozygous recessive?
Correct Answer: 50

Question 18.
Genetics is the study of
Correct Answer: inheritance of acquired characteristics

Question 19.
Which of the following is the correct sequence of events for mitosis?
Correct Answer: PMAT (prophase, metaphase, anaphase, telophase)

Question 20.
Which of the following is NOT a component of the DNA nucleotide?
Correct Answer: sulfate

Question 21.
What is released from the chloroplast when water is broken down?
Correct Answer: a size-ordered chart of chromosomes.