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MD/MS OB-Gyn Fertilisation and Development — practice questions

Explore 30 free Fertilisation and Development questions in MD/MS OB-Gyn Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Fertilisation and Development questions and exercises with answers

Showing questions 1–30 of 30.

A sperm and an oocyte combine and their nuclei fuse. That event is:Read the answer and worked solution →The single cell formed at fertilisation is called a:Read the answer and worked solution →Fluids in the female tract prime sperm for fertilisation. That priming is:Read the answer and worked solution →Fertilisation must happen in the distal uterine tube because an unfertilised oocyte cannot survive:Read the answer and worked solution →If two sperm fertilised one oocyte, the result would be a zygote that is:Read the answer and worked solution →At fertilisation, the oocyte is still arrested in metaphase of:Read the answer and worked solution →Two separate zygotes implanting together produce twins that are:Read the answer and worked solution →A solid ball of cells formed in the early days after fertilisation is the:Read the answer and worked solution →Once a fluid filled cavity forms, the conceptus is called a:Read the answer and worked solution →Inside the blastocyst, the group of cells destined to become the embryo is the:Read the answer and worked solution →The outer shell cells of the blastocyst are called:Read the answer and worked solution →The organ exchanging nutrients, waste and gases between parent and fetus is the:Read the answer and worked solution →A blastocyst usually implants in which part of the uterus?Read the answer and worked solution →The hormone secreted by the trophoblast that keeps the corpus luteum alive is:Read the answer and worked solution →A home urine pregnancy test turns positive because it detects:Read the answer and worked solution →A placenta growing over the opening of the cervix is a condition called placenta:Read the answer and worked solution →The membrane that fills with fluid and surrounds the embryo is the:Read the answer and worked solution →Amniotic fluid protects the fetus from trauma and from rapid changes in:Read the answer and worked solution →A newborn's first stool, made of swallowed fluid, mucus, debris and bile, is:Read the answer and worked solution →An average pregnancy of 40 weeks is divided into how many trimesters?Read the answer and worked solution →The posterior pituitary hormone that drives the contractions of labour is:Read the answer and worked solution →At birth, the lungs take over from the placenta the job of exchanging oxygen and:Read the answer and worked solution →Catch the early stagesRead the answer and worked solution →Pop the placenta jobsRead the answer and worked solution →Run the pregnancy gatesRead the answer and worked solution →Slice the pregnancy wordsRead the answer and worked solution →Before or after implantingRead the answer and worked solution →Sort the pregnancy ideasRead the answer and worked solution →Type the numberRead the answer and worked solution →Development bingoRead the answer and worked solution →

Worked practice questions

A sperm and an oocyte combine and their nuclei fuse. That event is:

  1. Fertilisation
  2. Fermentation
  3. Fortification
  4. Formulation
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Correct answer: A. Fertilisation

1. Two cells become one. 2. Their genetic material joins. 3. That event is fertilisation. _Source: OpenStax Anatomy and Physiology 2e, Chapter 28, Development and Inheritance._

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The single cell formed at fertilisation is called a:

  1. Zephyr
  2. Zygote
  3. Zealot
  4. Zenith
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Correct answer: B. Zygote

1. It holds a full set of instructions. 2. Half comes from each parent. 3. That cell is the zygote. _Source: OpenStax Anatomy and Physiology 2e, Chapter 28, Development and Inheritance._

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Fluids in the female tract prime sperm for fertilisation. That priming is:

  1. Capacitation
  2. Calcification
  3. Codification
  4. Compaction
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Correct answer: A. Capacitation

1. The sperm is not ready on arrival. 2. The tract changes it on the way. 3. That change is capacitation. _Source: OpenStax Anatomy and Physiology 2e, Chapter 28, Development and Inheritance._

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