BIOL 1693 Module 12 Ch. 24:
Development and Inheritance Question
and answers 100% correct 2025
Gestation - correct answer ✔the time from fertilization to birth, generally 38
weeks
Embryonic period - correct answer ✔The first two months of development,
during which the developing human is called an embryo
End of the embryonic period - correct answer ✔the rudiments of all the
principal adult organs and the embryonic membranes are formed, and the
placenta is functioning.
Fetal period - correct answer ✔- The time from after the 8th week to birth
- the developing human is called a fetus in this period
Pregnancy - correct answer ✔A sequence of events that include:
Fertilization
Implantation
Embryonic growth
Fetal growth
Birth (at about 38 weeks)
Fertilization - correct answer ✔the genetic material from a haploid sperm cell
and a haploid secondary oocyte merges into a single diploid nucleus
, Capacitation - correct answer ✔The functional changes that sperm undergo
in the female reproductive tract that enable them to fertilize a secondary
oocyte
Cleavage - correct answer ✔the early rapid mitotic cell division of a zygote.
Blastomeres - correct answer ✔The cells produced by cleavage are called
___.
Morula - correct answer ✔Successive cleavages produce a solid mass of
cells called the __________.
Blastocyst - correct answer ✔a hollow ball of cells that is differentiated into:
- a trophoblast (which will form the future embryonic membranes),
- an inner cell mass or embryoblast (the future embryo)
- AND an internal fluid-filled cavity called the blastocele.
Implantation - correct answer ✔The attachment of a blastocyst to the
endometrium occurs 7 to 8 days after fertilization
Trophoblast - correct answer ✔After implantation, approximately 6 days after
fertilization, the blastocyst becomes a ______________.
Syncytiotrophoblast cells - correct answer ✔Enable the blastocyst to
penetrate the uterine lining.
Human chorionic gonadotropin - correct answer ✔Rescues the corpus
luteum from degeneration and sustains its function.
Development and Inheritance Question
and answers 100% correct 2025
Gestation - correct answer ✔the time from fertilization to birth, generally 38
weeks
Embryonic period - correct answer ✔The first two months of development,
during which the developing human is called an embryo
End of the embryonic period - correct answer ✔the rudiments of all the
principal adult organs and the embryonic membranes are formed, and the
placenta is functioning.
Fetal period - correct answer ✔- The time from after the 8th week to birth
- the developing human is called a fetus in this period
Pregnancy - correct answer ✔A sequence of events that include:
Fertilization
Implantation
Embryonic growth
Fetal growth
Birth (at about 38 weeks)
Fertilization - correct answer ✔the genetic material from a haploid sperm cell
and a haploid secondary oocyte merges into a single diploid nucleus
, Capacitation - correct answer ✔The functional changes that sperm undergo
in the female reproductive tract that enable them to fertilize a secondary
oocyte
Cleavage - correct answer ✔the early rapid mitotic cell division of a zygote.
Blastomeres - correct answer ✔The cells produced by cleavage are called
___.
Morula - correct answer ✔Successive cleavages produce a solid mass of
cells called the __________.
Blastocyst - correct answer ✔a hollow ball of cells that is differentiated into:
- a trophoblast (which will form the future embryonic membranes),
- an inner cell mass or embryoblast (the future embryo)
- AND an internal fluid-filled cavity called the blastocele.
Implantation - correct answer ✔The attachment of a blastocyst to the
endometrium occurs 7 to 8 days after fertilization
Trophoblast - correct answer ✔After implantation, approximately 6 days after
fertilization, the blastocyst becomes a ______________.
Syncytiotrophoblast cells - correct answer ✔Enable the blastocyst to
penetrate the uterine lining.
Human chorionic gonadotropin - correct answer ✔Rescues the corpus
luteum from degeneration and sustains its function.
