CNUR 303: Unit 1 - Conception and Genetics
Exam | Questions with 100% Correct Answers |
Verified | Latest Update 2026/2027
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Practice questions for this set
Learn 1 /7 Study using Learn
46 (diploid)
Choose an answer
How many chromosomes are in How many chromosomes are in
1 2
somatic cells? gametes?
What is the fourth stage in
3 Define genotype 4
preparation for fertilization?
Don't know?
Terms in this set (33)
, How many chromosomes are in 46 (diploid)
somatic cells?
How many chromosomes are in 23 (haploid)
gametes?
What is the first stage in preparation Ovulation occurs and the egg is picked up by the
for fertilization? fallopian tube (viable for 24 hours).
What is the second stage in The sperm is deposited and transported to the site
preparation for fertilization? of the ovum (viable for 48-72 hours).
What is the third stage in preparation The sperm undergoes capacitation and acrosomal
for fertilization? reaction to penetrate the egg membrane.
What is the fourth stage in Initial sperm penetration causes a chemical
preparation for fertilization? reaction blocking subsequent sperm penetration.
What is the fifth stage in preparation The sperm enters the ovum and a chemical signal
for fertilization? prompts the secondary oocyte to complete
second meiotic division.
What is the final stage in preparation The nuclei unite (true fertilization), with each
for fertilization? nucleus containing haploid chromosomes pairing
up to produce a diploid zygote.
What are the two pairs of sex XX (female) or XY (male)
chromosomes?
Explain monozygotic twins A single zygote splits in the first two weeks of
development, creating two separate but
genetically identical offspring.
Exam | Questions with 100% Correct Answers |
Verified | Latest Update 2026/2027
Save
Practice questions for this set
Learn 1 /7 Study using Learn
46 (diploid)
Choose an answer
How many chromosomes are in How many chromosomes are in
1 2
somatic cells? gametes?
What is the fourth stage in
3 Define genotype 4
preparation for fertilization?
Don't know?
Terms in this set (33)
, How many chromosomes are in 46 (diploid)
somatic cells?
How many chromosomes are in 23 (haploid)
gametes?
What is the first stage in preparation Ovulation occurs and the egg is picked up by the
for fertilization? fallopian tube (viable for 24 hours).
What is the second stage in The sperm is deposited and transported to the site
preparation for fertilization? of the ovum (viable for 48-72 hours).
What is the third stage in preparation The sperm undergoes capacitation and acrosomal
for fertilization? reaction to penetrate the egg membrane.
What is the fourth stage in Initial sperm penetration causes a chemical
preparation for fertilization? reaction blocking subsequent sperm penetration.
What is the fifth stage in preparation The sperm enters the ovum and a chemical signal
for fertilization? prompts the secondary oocyte to complete
second meiotic division.
What is the final stage in preparation The nuclei unite (true fertilization), with each
for fertilization? nucleus containing haploid chromosomes pairing
up to produce a diploid zygote.
What are the two pairs of sex XX (female) or XY (male)
chromosomes?
Explain monozygotic twins A single zygote splits in the first two weeks of
development, creating two separate but
genetically identical offspring.
