multiple choice random Flashcards
Which of the following best describes genomic imprinting?
A) The process by which genes are expressed equally from both parents
B) The differential expression of genes depending on their parental origin
C) The complete silencing of one parent’s genes
D) The random activation of genes regardless of parental origin
B) The differential expression of genes depending on their parental origin
In the context of genomic imprinting conflict, which of the following statements is true?
A) Maternal genes typically promote fetal growth, while paternal genes inhibit it.
B) Paternal genes are always expressed, regardless of imprinting.
C) Maternal genes are more likely to be silenced than paternal genes.
D) Genomic imprinting has no effect on maternal investment in offspring.
A) Maternal genes typically promote fetal growth, while paternal genes inhibit it.
What is the primary evolutionary advantage of genomic imprinting?
A) It allows for greater genetic diversity.
B) It ensures equal expression of alleles from both parents.
C) It enables the regulation of resource allocation between mother and offspring.
D) It prevents the expression of deleterious mutations.
C) It enables the regulation of resource allocation between mother and offspring.
Which of the following is a hallmark symptom of pre-eclampsia?
A) Severe abdominal pain
B) Hypertension and proteinuria
C) Excessive fetal movement
D) Elevated blood glucose levels
B) Hypertension and proteinuria
What is the primary cause of eclampsia?
A) Genetic predisposition
B) Severe pre-eclampsia leading to seizures
C) Intrauterine growth restriction
D) Maternal obesity
B) Severe pre-eclampsia leading to seizures
Which of the following factors is NOT associated with an increased risk of developing pre-eclampsia?
A) First-time pregnancy
B) Multiple gestation
C) Advanced maternal age
D) Low socioeconomic status
D) Low socioeconomic status
Intra-genomic conflict primarily arises from:
A) The competition between maternal and paternal alleles for expression.
B) The interaction between different chromosomes.
C) The influence of environmental factors on gene expression.
D) The random mutation of genes over generations.
A) The competition between maternal and paternal alleles for expression.
Which of the following best exemplifies intra-genomic conflict?
A) The silencing of paternal alleles in the placenta.
B) The equal expression of genes from both parents in the offspring.
C) The dominance of maternal genes in regulating fetal growth.
D) The complete loss of function of a gene due to mutation.
A) The silencing of paternal alleles in the placenta.
Which of the following is considered a potential time of conflict between maternal and paternal genes?
A) During fertilization
B) During the first trimester of pregnancy
C) During the development of the placenta
D) After birth
C) During the development of the placenta
At which stage of development is the conflict between maternal investment and paternal gene expression most pronounced?
A) Pre-implantation
B) Early embryonic development
C) Late gestation
D) Post-natal development
C) Late gestation
Which of the following is a common cause of intrauterine growth restriction (IUGR)?
A) Maternal diabetes
B) Excessive maternal weight gain
C) Increased fetal movement
D) Maternal hyperthyroidism
A) Maternal diabetes
What is the primary consequence of IUGR on fetal development?
A) Increased risk of congenital anomalies
B) Enhanced cognitive development
C) Decreased birth weight and potential long-term health issues
D) Improved placental function
C) Decreased birth weight and potential long-term health issues
