Question at position 21 What is a zygote?An unfertilized female gamete produced in the testesA fertilized ovum containing 46 chromosomesA male gamete that matures in the uterusA hormone released to sustain pregnancy

Question

BlackTom AI · Accepted Answer

Exploring the concept in question, we assess what a zygote is and what each option implies.
Option 1: 'An unfertilized female gamete produced in the testes' — this is inaccurate on two counts: first, female gametes (ova) are not produced in the testes but in the ovaries, and second, a zygote is not unfertilized; it results from fertilization.
Option 2: 'A fertilized ovum containing 46 chromosomes' — this is the correct description. A zygote forms when a sperm fertilizes an ovum, combining their genetic material to produce a cell with a full set of chromosomes, typically 46 in humans, establishing the diploid state.
Option 3: 'A male gamete that matures in the uterus' — this is incorrect. Male gametes are sperm, produced in the testes, and they do not mature in the uterus; fertilization involves a sperm entering an ovum, not maturing there.
Option 4: 'A hormone released to sustain pregnancy' — this misidentifies a zygote as a hormone; in fact, a zygote is a new diploid cell formed after fertilization, not a hormone or a signaling molecule.
In summary, the only option that accurately defines a zygote is the fertilized ovum containing 46 chromosomes, since it represents the initial diploid cell resulting from the union of gametes.

Question at position 21 What is a zygote?An unfertilized female gamete produced in the testesA fertilized ovum containing 46 chromosomesA male gamete that matures in the uterusA hormone released to sustain pregnancy

查看解析

登录即可查看完整答案

类似问题

Where does the female egg get fertilized?

Conception takes place when _____________.

The union of the ovum and sperm is termed:

What structure is formed after gametes unite?

The process by which a sperm cell combines with an egg cell is

______ prevents another sperm from binding to the sperm receptors on the oocyte's plasma membrane

Question at position 17 When a sperm nucleus fuses to oocyte nucleus creating a zygote, this is called amphimixis.TrueFalse

Conception takes place when _____________.

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单