BIO 156 RIO EXAM 2 NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT
VERIFIED ANSWERS (DETAILED ANSWERS) ALREADY GRADED A+ 100% GUARANTEED TO
PASS CONCEPTS!!!
Interphase is the stage when __________. - ANSWER-a cell grows and
duplicates its DNA.
In an individual with a dominant phenotype is crossed with an individual with a
recessive phenotype, 4 of their 9 offspring show the recessive phenotype.
What is the genotype of the first parent? - ANSWER-Bb
Solve this monohybrid genetics problem: Black hair is governed by the
dominant gene (B) and blond hair is determined by the recessive gene (b). In
this monohybrid cross, if both parents are heterozygous, what percentage of
the offspring would be expected to have blond hair? - ANSWER-25%
A Punnett square can be used to determine___________. - ANSWER-the
genotype of an offspring
Different alleles of the same gene are found - ANSWER-at the same place on
homologous chromosomes
If a parental cell has 14 chromosomes prior to mitosis, how many
chromosomes will each daughter cell have? - ANSWER-14 because the
chromatids separate
a duplicated chromosome has _____ chromatid(s) - ANSWER-2
, Mendel was fortunate to work out the laws of segregation and independent
assortment because he used an organism that reproduced quickly and in which
the traits were discrete (easy to observe). Mendel's organism of choice was the
- ANSWER-pea plant
What is the importance of crossing-over? - ANSWER-It increases the likelihood
that daughter cells contain different genetic material.
Assuming that the probability of having a female child is 50% and the
probability of having a male child is also 50%, what is the probability that a
couple's firstborn child is female and second-born child is male? - ANSWER-
25%
If a parental cell has 12 chromosomes, then each of the daughter cells
following meiosis will have _____. - ANSWER-6 chromosomes.
Which of the following genotypes would be homozygous dominant for both
alleles? - ANSWER-DDEE
Which sequence of stages in mitosis is correct? - ANSWER-prophase,
prometaphase, metaphase, anaphase, telophase
During which stage of meiosis does crossing-over occur? - ANSWER-prophase I
Which occurs in anaphase? - ANSWER-Chromosomes move to opposite poles.
If both parents in a dihybrid cross are heterozygous for both traits, the
expected phenotypic ratio in the offspring would be - ANSWER-9:3:3:1
VERIFIED ANSWERS (DETAILED ANSWERS) ALREADY GRADED A+ 100% GUARANTEED TO
PASS CONCEPTS!!!
Interphase is the stage when __________. - ANSWER-a cell grows and
duplicates its DNA.
In an individual with a dominant phenotype is crossed with an individual with a
recessive phenotype, 4 of their 9 offspring show the recessive phenotype.
What is the genotype of the first parent? - ANSWER-Bb
Solve this monohybrid genetics problem: Black hair is governed by the
dominant gene (B) and blond hair is determined by the recessive gene (b). In
this monohybrid cross, if both parents are heterozygous, what percentage of
the offspring would be expected to have blond hair? - ANSWER-25%
A Punnett square can be used to determine___________. - ANSWER-the
genotype of an offspring
Different alleles of the same gene are found - ANSWER-at the same place on
homologous chromosomes
If a parental cell has 14 chromosomes prior to mitosis, how many
chromosomes will each daughter cell have? - ANSWER-14 because the
chromatids separate
a duplicated chromosome has _____ chromatid(s) - ANSWER-2
, Mendel was fortunate to work out the laws of segregation and independent
assortment because he used an organism that reproduced quickly and in which
the traits were discrete (easy to observe). Mendel's organism of choice was the
- ANSWER-pea plant
What is the importance of crossing-over? - ANSWER-It increases the likelihood
that daughter cells contain different genetic material.
Assuming that the probability of having a female child is 50% and the
probability of having a male child is also 50%, what is the probability that a
couple's firstborn child is female and second-born child is male? - ANSWER-
25%
If a parental cell has 12 chromosomes, then each of the daughter cells
following meiosis will have _____. - ANSWER-6 chromosomes.
Which of the following genotypes would be homozygous dominant for both
alleles? - ANSWER-DDEE
Which sequence of stages in mitosis is correct? - ANSWER-prophase,
prometaphase, metaphase, anaphase, telophase
During which stage of meiosis does crossing-over occur? - ANSWER-prophase I
Which occurs in anaphase? - ANSWER-Chromosomes move to opposite poles.
If both parents in a dihybrid cross are heterozygous for both traits, the
expected phenotypic ratio in the offspring would be - ANSWER-9:3:3:1
