BIOLOGY EOC GRADE 10 QUESTIONS
WITH COMPLETE ANSWERS
The cytoplasm divides - ANSWER-What happens during cytokinesis?
The cell could not control its growth rate and would continue to divide - leads to
cancer - ANSWER-If the cell cycle is controlled by enzymes, what might result if the
genes that control the production of these
enzymes are damaged?
Interphase - ANSWER-DNA replication
Prophase I: - ANSWER-Homologous chromosomes pair up forming a tetrad
Metaphase I: - ANSWER-tetrad line up in the middle
Anaphase I: - ANSWER-Homologous chromosomes pull apart
Telophase I: - ANSWER-two new cells form
Prophase II: - ANSWER-Cell prepares to divide again
Metaphase II: - ANSWER-Homologous chromosomes line up in the middle
Anaphase II: - ANSWER-sister chromatids pull apart
Telophase II: - ANSWER-4 new cells form
Make protein from RNA; in the cytoplasm at the ribosome - ANSWER-Describe the
process of translation and where it happens.
Ser - Val - ANSWER-After translation, what would the amino acid sequence be for
this section of mRNA?
Peptide bond - ANSWER-What kind of bond holds the amino acids together in the
protein that is formed?
DNA is copied; DNA unzips, one strand serves as the template and creates 2 new
DNA molecules - ANSWER-Describe the process of DNA replication.
Two new molecules - made up of one original strand and one new strand -
ANSWER-What is the end result of DNA replication?
Change in genetic sequence - ANSWER-What is a mutation?
mRNA - carries message from DNA
, rRNA - makes up the ribosome
tRNA - transfers amino acids to the ribosome - ANSWER-What the three types of
RNA and what are their functions?
dominant - ANSWER-written as a capital letter, this trait will show
recessive - ANSWER-written as a lower case letter; only will show if two recessive
alleles are present
homozygous - ANSWER-SAME alleles; TT or tt
heterozygous - ANSWER-DIFFERENT alleles; Tt
genotype - ANSWER-letter combination that show the genes; TT, Tt, tt
phenotype - ANSWER-physical description; tall or short
Tt x Tt
75% Tall
25% short - ANSWER-In a genetics laboratory, two heterozygous tall plants are
crossed. If tall is dominant over short,
what are the expected phenotypic results?
tt x Tt
50% short
50% Tall - ANSWER-If one homozygous short plant is crossed with a heterozygous
tall plant, what percentage of the
offspring will be short?
Tt x tt - ANSWER-What are the genotypes of the parents that would produce 50%
short and 50% tall pea plants?
RW x RW
25% red
50% pink
25% white - ANSWER-Sample incomplete dominance question: When Red and
white flowers are crossed, pink flowers are
produced. What is expected when two pink flowers cross?
Mr. Jones: I A I A
Mrs. Jones: I A I B
50% chance of a child with Type A blood - ANSWER-Sample Blood Type (Multiple
Allele/ co-dominant) Question: Mr. Jones has blood type A and Mrs. Jones
has blood type AB. What is the probability that they will have a child with blood type
A if both of Mr. Jones's
parents were AB?
WITH COMPLETE ANSWERS
The cytoplasm divides - ANSWER-What happens during cytokinesis?
The cell could not control its growth rate and would continue to divide - leads to
cancer - ANSWER-If the cell cycle is controlled by enzymes, what might result if the
genes that control the production of these
enzymes are damaged?
Interphase - ANSWER-DNA replication
Prophase I: - ANSWER-Homologous chromosomes pair up forming a tetrad
Metaphase I: - ANSWER-tetrad line up in the middle
Anaphase I: - ANSWER-Homologous chromosomes pull apart
Telophase I: - ANSWER-two new cells form
Prophase II: - ANSWER-Cell prepares to divide again
Metaphase II: - ANSWER-Homologous chromosomes line up in the middle
Anaphase II: - ANSWER-sister chromatids pull apart
Telophase II: - ANSWER-4 new cells form
Make protein from RNA; in the cytoplasm at the ribosome - ANSWER-Describe the
process of translation and where it happens.
Ser - Val - ANSWER-After translation, what would the amino acid sequence be for
this section of mRNA?
Peptide bond - ANSWER-What kind of bond holds the amino acids together in the
protein that is formed?
DNA is copied; DNA unzips, one strand serves as the template and creates 2 new
DNA molecules - ANSWER-Describe the process of DNA replication.
Two new molecules - made up of one original strand and one new strand -
ANSWER-What is the end result of DNA replication?
Change in genetic sequence - ANSWER-What is a mutation?
mRNA - carries message from DNA
, rRNA - makes up the ribosome
tRNA - transfers amino acids to the ribosome - ANSWER-What the three types of
RNA and what are their functions?
dominant - ANSWER-written as a capital letter, this trait will show
recessive - ANSWER-written as a lower case letter; only will show if two recessive
alleles are present
homozygous - ANSWER-SAME alleles; TT or tt
heterozygous - ANSWER-DIFFERENT alleles; Tt
genotype - ANSWER-letter combination that show the genes; TT, Tt, tt
phenotype - ANSWER-physical description; tall or short
Tt x Tt
75% Tall
25% short - ANSWER-In a genetics laboratory, two heterozygous tall plants are
crossed. If tall is dominant over short,
what are the expected phenotypic results?
tt x Tt
50% short
50% Tall - ANSWER-If one homozygous short plant is crossed with a heterozygous
tall plant, what percentage of the
offspring will be short?
Tt x tt - ANSWER-What are the genotypes of the parents that would produce 50%
short and 50% tall pea plants?
RW x RW
25% red
50% pink
25% white - ANSWER-Sample incomplete dominance question: When Red and
white flowers are crossed, pink flowers are
produced. What is expected when two pink flowers cross?
Mr. Jones: I A I A
Mrs. Jones: I A I B
50% chance of a child with Type A blood - ANSWER-Sample Blood Type (Multiple
Allele/ co-dominant) Question: Mr. Jones has blood type A and Mrs. Jones
has blood type AB. What is the probability that they will have a child with blood type
A if both of Mr. Jones's
parents were AB?
