hich of the following human aneuploids is/are never viable and will end in a miscarriage? Question 6 options: A) monosomy 13 B) trisomy 21 C) trisomy X D) All of the above are correct and will cause a miscarriage.

True or False: When an individual generates gametes via meiosis the gametes either receive all of their maternal alleles or all of their paternal alleles? b) Explain your answer.

A diploid organism has five pairs of chromosomes in each somatic cell. Assuming that no crossing over occurs, how many genetically distinct gametes can this organism produce?

A white-eyed  (X-linked  recessive character)  female  fruit  fly  is  mated  to  a  red-eyed  male.  One  of their  progeny  is  a white-eyed  female.  What  is  the  most  likely  set  of  chromosomes  of  this  whiteeyed  daughter?  A)  XXY B)  XX C)  XO D)  XXX E)  XYY

What went wrong during meiosis of the parent cell on the left? a) nondisjunction during meiosis I b) nothing went wrong c) nondisjunction during meiosis II d) monosomy during meiosis II e) trisomy during meiosis I

If chromosomal nondisjunction occurs during meiosis I, what proportion of zygotes formed from the resulting gametes would be aneuploid? (Assume the gametes from the other parent are normal)a) 0% b) 25% c) 50% d) 75% e) 100%

Using the following allelic series A1>A2>A3>A4, indicate what would be the phenotype of a A1A3 heterozygote? O A) A1 phenotype O B) A3 phenotype C) both A1 and A3 phenotypes D) A2 phenotype

What causes most of the phenotypic abnormalities in someone with Down's Syndrome? A) They have many gene mutations that produce nonfunctional proteins. B) They express too much of some proteins during development. C) Their cells cannot go through mitosis properly during development because they have an odd number of chromosomes. D) Their chromosomes cannot pair during meiosis.

5. Red green colorblindness is a rare X-linked recessive trait. If a male has red-green colorblindness, which of the following statements would be accurate? A) His father must be color-blind B) His mother must be color-blind C) Both his mother and his father must be color-blind D) Neither the mother nor the father must be color-blind E) There is a 50% chance that his father is colorblind

Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition.  What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?)     0%     1/4 or 25%     2/4 or 50%     3/4 or 75%     4/4 or 100%