Question

1) Which of the following genotypes is homozygous: a) AaBB c) aaBb b) AABb d) aabb 2) ith A locus is: a) a recessive gene b) an unmatched allele c) the location of a gene on a chromosome d) holds two sister chromatids toghether Which of the following would represent a heterozygous genotype: a) Bb c) bb b) BB d) AA 3) 마. g 4) If a dog displays a recessive phenotype it genotype must be: a) either TT or Tt c) only tt b) only TT d) only Tt The end products of the Krebs (Citric) cycle include: a) NADH, FADH2, CO2, and ATP b) pyruvate, NADPH, FADH, and ATP c) ATP and NADPH d) water and ATP e suite 5) 6) If R is dominant to r, the offspring of the cross of RR and or will: a) be homozygous b) have the same genotype as the RR parent c) display the same phenotype as the rr parent d) have the same genotype as the rr parent e) display the same phenotype as the RR parent If ALL offspring of a monohybrid cross have the genotype Aa, the parents of the cross would most likely be: a) Aa x Aa c) AA x aa b) Aa x aa d) AA x AA Short answers (3 pts) 1) What exact genotypes of the human A-B-O blood typing), would produce all of the four types (A, B, AB, and O): 7)

Answer 1

Q1- option d is homozygous (aabb) because other are heterozygous.

Q2- option b is correct.

Locus is the location of gene on chromosome.

Q3- option a (Bb) is the heterozygous genotype.

Q4- option c the only tt is correct because it is a homozygous recessive genotype which going to show recessive phenotype.

Q5- option a is correct that is

NADH, FADH2, ATP and CO2 are the end product of krebs cycle.

Q6- option e is correct that is cross between RR and rr produces all Rr genotype which are same to the phenotype of RR parent. Because both have dominant R.

Q7- option c is correct that is AA x aa , ao each parent produce A and a gamete respectively.

So cross between A and a will produces Aa type genotype in f1.