Biology Part four- WGU C190 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The main advantage of sexual reproduction compared to asexual reproduction is that it produces
__________. - CORRECT ANSWER - more genetic variation among offspring
Meiosis- - CORRECT ANSWER - A type of cell division in which a single, diploid germ
cell is divided into four, haploid gamete cells. Meiosis only occurs in organisms that sexually
reproduce and results in the production of sperm in males and eggs in females.
Which cell would have homologous chromosomes? - CORRECT ANSWER - A cell at the
beginning of meiosis I
Which cell would not have chromosomes with sister chromatids joined by a centromere? -
CORRECT ANSWER - A cell at the end of meiosis II
After telophase I of meiosis, the chromosomal makeup of each daughter cell is ___________. -
CORRECT ANSWER - haploid, and the chromosomes are each composed of two
chromatids
A fly is heterozygous for wing length, carrying one allele for the dominant long-winged
appearance and one allele for the recessive short-winged appearance. Which percentage of the
fly's gametes will carry the short-winged allele? - CORRECT ANSWER - 50%
Black (B) is the dominant color, and red (b) is the recessive color in a species of beetle. Two
beetles that are both Bb are crossed. What percentage of the offspring will be red? - CORRECT
ANSWER - 25%
Consider the results of a dihybrid cross, where Y refers to black fur, y refers to white fur, S refers
to short fur, and s refers to long fur. Capitalized letters refer to dominant traits, and lowercase
letters refer to recessive traits. The following are the results: YYSS, YYSs, YySS, YySs, YYSs,
ACTUAL Exam Questions and CORRECT
Answers
The main advantage of sexual reproduction compared to asexual reproduction is that it produces
__________. - CORRECT ANSWER - more genetic variation among offspring
Meiosis- - CORRECT ANSWER - A type of cell division in which a single, diploid germ
cell is divided into four, haploid gamete cells. Meiosis only occurs in organisms that sexually
reproduce and results in the production of sperm in males and eggs in females.
Which cell would have homologous chromosomes? - CORRECT ANSWER - A cell at the
beginning of meiosis I
Which cell would not have chromosomes with sister chromatids joined by a centromere? -
CORRECT ANSWER - A cell at the end of meiosis II
After telophase I of meiosis, the chromosomal makeup of each daughter cell is ___________. -
CORRECT ANSWER - haploid, and the chromosomes are each composed of two
chromatids
A fly is heterozygous for wing length, carrying one allele for the dominant long-winged
appearance and one allele for the recessive short-winged appearance. Which percentage of the
fly's gametes will carry the short-winged allele? - CORRECT ANSWER - 50%
Black (B) is the dominant color, and red (b) is the recessive color in a species of beetle. Two
beetles that are both Bb are crossed. What percentage of the offspring will be red? - CORRECT
ANSWER - 25%
Consider the results of a dihybrid cross, where Y refers to black fur, y refers to white fur, S refers
to short fur, and s refers to long fur. Capitalized letters refer to dominant traits, and lowercase
letters refer to recessive traits. The following are the results: YYSS, YYSs, YySS, YySs, YYSs,
