Biology Chapter: Homologous2 Chromosomes3

The term "homologous chromosomes" refers to:

an exchange between non-homologous chromosomes, resulting in chromosomes with new genes adjacent to each other.

The chromosome on the photo below is: (bild med centrosome näst högst upp)

Which of the following conditions are required for a population to be in Hardy-Weinberg equilibrium?

Down syndrome is the result of:

What components should be added to a polymerase chain reaction (PCR)?

Which genetic condition is revealed in the photos above? bilder visar blåa ögon, fel på en hand och fel på foten

Identical twins are:

The chromosome on the photo above is : bilden visar centromer i mitten

The photo represents agarose gel electrophoresis patterns of ACE gene polymorphism. Which of the lanes

den som är dubbla sträck var 5,6,9

Examine the pedigree in the figure above, where individuals that have the genetic condition being tested arcircles. Which of the following inheritance patterns is most likely correct for this condition?

Deletion is a type of mutation when:

Fraternal (dizygotic) twins are produced when:

The polymerase chain reaction or PCR is a technique that

Which of the following is an example of monosomy?

Hemochromatosis is an autosomal recessive disease that is relatively common in the population (1 in 500).successfully by periodic removal of blood (serial phlebotomy) but failure to recognize it can lead to a numbePopulation screening for carriers is being considered. What is the expected carrier frequency in the popula

A woman brings her 16-year old daughter to a physician because she has not yet begun menstruating. Althmeters, the patient is 1.5 meters and has always been below the 50th percentile in height. Physical examinadevelopment. She has no problems in school and is of normal inteligence.What is the most likely underly

On physical examination, a newborn is found to have micrognathia, a prominent occiput, low-set ears, andlittle mental development during the first month of life, and the infant dies of cardiac complications after 8of this child would show which of the following?

A nondisjunction of chromosome 21 in meiosis II in a male would yield which combination of the following

Which of the following diagnostic techniques is of great value for the diagnosis of neural tube defects?

The pregnant mother of a 6-year-old son with glucose-6-phosphate dehydrogenase deficiency is very worriethe disease. The father and mother are clinically normal. Which of the following is true about her baby?

Which of the following statements is accurate in regards to prenatal diagnosis?

Certain combinations of chromosomes in Robertsonian translocation carry a risk for the carriers of these cochildren because the possible trisomies that can result are viable (can be born alive). Other combinations cachildren, but can result in what is perceived as infertility because abnormal conceptions may not be recognabort. Which one of the folowing Robertsonian translocations in a carrier confers the greatest risk for havin Select one:

The patient has flat occiput, Brushfield spots, atrioventricular canal cardiac defect, single palmar creases. MSelect one:

Characteristics of women with Turner's syndrome include which of the following?

A tall male with gynecomastia and small testes should have a cytogenetic study to diagnose which of the foSelect one:

The proband and both his parents suffer from hereditary multiple exostoses, while two of his brothers are hProband’s maternal grandfather and paternal grandmother also suffered from the disease. Their spouses wean affected child in proband’s family, if he marries a woman without the disease. Select one:

Which pedigree represents X – linked dominant inheritance?

Father has a trait, which is inherited in X linked recessive mode of inheritance. Calculate the probability to hmarriage with a female who is a carrier of recessive allele. Select one:

In South Africa, variegate porphyria is found in white South Africans at a higher frequency than would be exHardy-Weinberg eqiulibrium. This population originated from a small group of Dutch settlers. The most likefrequency of variegate in this population is: Select one:

A sample of 100 000 of human disclosed 30 persons ill with retinoblastoma (autosomal dominant trait). Caldominat allele in this population Select one:

Inherited methemoglobinemia (a certain anemia type)is caused by an autosomal recessive allele. In the Eskmethemoglobinemia. Calculate the frequency of the recessive allele in the Eskimo population? Select one:

H (heritability) values indicate primary environmental determination, if they are in the range: Select one:

Huntington disease is an autosomal dominant disease in which those who are homozygous for the diseaseis no different from that of heterozygotes. In a population where the frequency of the Huntington gene is 0those who are homozygous for the gene? Select one:

A woman and her spouse both show the normal phenotype for pigmentation, but both had one parent whoautosomal recessive trait. What is the probability that their first child will be an albino? Select one:

How many second polar bodies will be produced from secondary oocyte in the end of meiosis? Select one:

Which of the following cells are diploid?

Hemophilia is a sex-linked recessive trait in humans. If a father and a son are both hemophiliacs, but the mmust be:

The pedigree chart below is for a family, some of whose members exhibit the autosomal dominant trait, broindividuals are indicated by a dark square or circle. Use the chart to answer the following question: what is Select one:

The following scheme shows a stage of cell division for an eukaryotic diploid cell. Indicate the correct statement.