| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.HL.TZ1.11 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 11 | Adapted from | N/A |
Question
What term describes the failure of sister chromatids to separate during anaphase II?
A. Sex linkage
B. Karyotyping
C. Non-disjunction
D. Semi-conservative replication
Markscheme
C
Examiners report
Questions 7, 8, 10, 11 and 12 also had relatively low discrimination indices because a high proportion of candidates answered them correctly, indicating either good knowledge or that these questions proved to be rather too easy.
Syllabus sections
Show 84 related questions
- 17N.1.HL.TZ0.12: A dominant autosomal allele for lactase persistence allows humans to digest milk as adults....
- 17N.1.SL.TZ0.16: An allele for lactase persistence allows humans to digest milk as adults. People who lack...
- 17M.2.HL.TZ1.1f.ii: Suggest a reason for the greater expression of the gene for the urea transporter after an...
- 17M.2.SL.TZ2.4a.i: State one type of environmental factor that may increase the mutation rate of a gene.
- 17M.2.SL.TZ1.1c: Estimate how much smaller drilled oysters raised in seawater at a high CO2 concentration were...
- 17M.1.HL.TZ1.11: What proves that the inheritance of the condition shown in this pedigree chart is autosomal...
- 17M.1.SL.TZ2.27: The bacterium Neisseria gonorrhoeae causes infections related to the human reproductive...
- 17M.1.SL.TZ2.16: The diagram shows a pedigree of cystic fibrosis, in which the black colour indicates the...
- 17M.1.SL.TZ2.15: Some breeds of dogs are characterized by the presence of a melanistic mask, which is a...
- 17M.1.SL.TZ1.21: Cladograms can be created by comparing DNA or protein sequences. The cladogram on the left is...
- 17M.1.SL.TZ1.13: A child has blood group A. The father of the child has blood group B. What are the possible...
- 16M.2.HL.TZ0.5c: Many genetic diseases are due to recessive alleles of autosomal genes that code for an...
- 16N.2.HL.TZ0.5b: Identify the genotype of the individual marked with a star in the pedigree chart, using...
- 16N.2.HL.TZ0.5a: Using the pedigree chart, deduce the type of allele that causes hypophosphatemia.
- 16N.2.SL.TZ0.4d: A mule was born at the University of Idaho in the USA with 64 chromosomes. Suggest a...
- 16N.2.SL.TZ0.4b: Explain reasons that mules cannot reproduce.
- 16N.1.HL.TZ0.11: What is the major health issue resulting from the Chernobyl nuclear accident in 1986? A....
- 15M.1.HL.TZ1.11: The presence of freckles is a characteristic controlled by a dominant gene. Two parents who...
- 15M.1.HL.TZ1.12: What maximum number of different genotypes and phenotypes are possible among the children of...
- 15M.1.HL.TZ1.10: The feather colour of a certain breed of chicken is controlled by codominant alleles. A cross...
- 15M.1.SL.TZ2.13: Which individuals are colour blind in this Punnett grid? A. XB YB. XB XBC. Xb YD. XB Xb
- 15M.1.SL.TZ2.12: If a man with blood group O and a woman with blood group AB have children, which blood...
- 15M.2.HL.TZ2.4a: Define linked genes.
- 15M.2.HL.TZ2.4b: In cats, the allele for curled ears (C) is dominant over the allele for normal ears (c). The...
- 15M.2.SL.TZ1.6c: Explain the inheritance of colour blindness.
- 15N.1.SL.TZ0.12: In a person who is heterozygous for sickle-cell anemia, where is the mutation found? A. In...
- 15N.1.SL.TZ0.15: In a human with type A blood, what determines the blood group? A. Sex chromosomes B. One or...
- 15N.1.HL.TZ0.11: In a person who is heterozygous for sickle-cell anemia, where is the mutation found? A. In...
- 15N.1.HL.TZ0.13: In a human with type A blood, what determines the blood group? A. Sex chromosomes B. One or...
- 15N.2.SL.TZ0.3d(i): Deduce the possible phenotypes of individual X.
- 15N.2.SL.TZ0.3d(ii): Describe ABO blood groups as an example of codominance.
- 13M.2.HL.TZ1.6c: Explain how males inherit hemophilia and how females can become carriers for the condition.
- 13M.1.HL.TZ1.13: In humans the ABO blood groups are an example of inheritance involving multiple alleles. In a...
- 13M.1.HL.TZ1.15: Alkaptonuria is an inherited condition in humans that affects phenylalanine and tyrosine...
- 13M.1.HL.TZ2.13: The diagram shows a pedigree. According to the pedigree shown, which pattern of...
- 13M.2.SL.TZ1.7a: Define codominant allele, recessive allele, locus and sex linkage.
- 13M.2.SL.TZ1.7c: Explain how males inherit hemophilia and how females can become carriers for the condition.
- 13M.1.HL.TZ2.11: One type of gene mutation involves a base substitution. What are the consequences of the...
- 13M.1.HL.TZ2.14: If a father with A-type blood and a mother with B-type blood have a child, what is the...
- 13M.2.SL.TZ2.2a (i): Using the table, state whether recessive, dominant and codominant alleles are expressed in...
- 13M.2.SL.TZ2.2a (ii): State two alleles in blood groups that are codominant.
- 13M.2.SL.TZ2.2b: Clouded leopards live in tropical rainforests of South-East Asia. The normal spots (brown...
- 13N.1.SL.TZ0.12: What is the difference between dominant, recessive and codominant alleles?
- 13N.1.SL.TZ0.13: Which genotypes are possible when a male with blood group AB and a female with blood group O...
- 13M.2.SL.TZ1.7b: ABO blood groups are inherited from parents, but it is possible for a child to have a...
- 13N.1.SL.TZ0.14: The following shows a pedigree chart. What type of inheritance is shown in this pedigree...
- 13M.1.SL.TZ1.17: In guinea pigs black coat colour is dominant to white. In a test cross between a black and a...
- 13N.2.SL.TZ0.4c: Albinism is inherited as a recessive trait; the alleles of the gene involved are A and a. An...
- 13N.2.HL.TZ0.2b: Outline the inheritance of hemophilia in humans.
- 11M.1.HL.TZ1.14: The pedigree chart below shows the blood types of three members of a family. Which could...
- 11M.1.SL.TZ1.18: A woman who is a carrier for hemophilia and a man who does not have hemophilia have a child....
- 11M.1.SL.TZ2.17: Sickle-cell anemia is caused by a mutation. How many changes to the amino acid sequence are...
- 11M.1.SL.TZ2.25: Rhesus factor is an antigen present on the surface of red blood cells of Rhesus positive...
- 11M.1.SL.TZ2.24: A parent organism of unknown genotype is mated in a test cross. Half of the offspring have...
- 12M.1.HL.TZ1.13: A certain breed of mouse can have fur that is either black or brown. A mouse breeder performs...
- 12M.2.SL.TZ1.6b: Outline the inheritance of a named sex-linked condition in humans.
- 12M.1.SL.TZ2.23: The Punnett grid shows the inheritance of blood groups. What is the ratio of phenotypes of...
- 12M.1.SL.TZ1.15: Which of his grandparents must be a carrier if none of them had the disease? A. Maternal...
- 12M.1.SL.TZ1.16: His wife does not carry the hemophilia allele. What would be expected in their children?
- 12M.1.SL.TZ2.14: Which is a feature of sex-linked genes in humans? A. Males can only be heterozygous for the...
- 09M.2.HL.TZ2.3c: Describe the inheritance of colour blindness in humans.
- 09M.1.HL.TZ1.11: Red-green colour blindness is a sex-linked condition. Which of the following always shows...
- 09M.1.HL.TZ1.12: In a cross between red haired cattle and white haired cattle the offspring produced are...
- 09M.1.HL.TZ1.13: What evidence is given in the pedigree chart below to prove that the condition is caused by a...
- 09M.2.SL.TZ1.8b: Describe the role of sex chromosomes in the control of gender and inheritance of hemophilia.
- 09M.1.SL.TZ2.27: If an organism that is homozygous recessive for a trait is crossed with a heterozygote, what...
- 10M.2.HL.TZ2.4a: Explain why carriers of sex-linked (X-linked) genes must be heterozygous.
- 10M.1.SL.TZ1.17: What type of inheritance is shown in this pedigree chart? A. X-linked dominant B. Y-linked...
- 10M.1.SL.TZ2.15: A man of blood group A and a woman of blood group B have a child. If both are heterozygous...
- 10M.1.SL.TZ2.16: Which disease is an example of sex-linked (X-linked) inheritance? A. AIDS B. Down syndrome...
- 10M.2.SL.TZ2.3b: List the possible genotypes for blood group B.
- 10M.1.HL.TZ1.13: Which of the following genotypes is possible in the offspring of a homozygous male with blood...
- 09N.1.SL.TZ0.11: What is the cause of sickle-cell anemia?A. A change to the base sequence of a hemoglobin...
- 09N.1.SL.TZ0.13: The blood groups of a mother and four children are indicated on the pedigree chart...
- 09N.1.SL.TZ0.14: Boys can inherit the recessive allele (c) that causes red-green colour blindness from their...
- 11N.2.HL.TZ0.3 a: Predict the genotypic and phenotypic ratios of the possible offspring of a male hemophiliac...
- 11N.1.HL.TZ0.18: In humans a V-shaped hair line is dominant to a straight hair line. A woman with a V-shaped...
- 11N.2.SL.TZ0.4a (i): Determine the genotype of person 1.
- 11N.2.SL.TZ0.4a (ii): Deduce the genotype of the mother of person 2.
- 11N.2.SL.TZ0.4a (iii): If person 3 has a son, and the father is a hemophiliac male, predict the son’s phenotype.
- 12N.2.HL.TZ0.5b: Describe the inheritance of hemophilia including an example using a Punnett grid.
- 12N.1.SL.TZ0.14: What would be the expected result if a woman carrier for colour blindness and a colour blind...
- 12N.1.SL.TZ0.15: In peas, tall is dominant to dwarf. In a cross between a dwarf plant and a heterozygous tall...
- 16M.1.SL.TZ0.14: It is possible for two parents to have children with each of the four ABO blood groups. What...
