Fill up the blanks in the following paragraph by selecting the correct option.
During copulation (coitus) semen is released by the penis into the vagina and is called (i)._____.the ovum released by the ovary is transported to the (ii)._____where (iii).______takes place during fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes in the membrane that block the entry of (iv)._____The secretions of the (v)._____help the sperm enter into the cytoplasm of the ovum.

Options

A. `{:("(i)","(ii)","(iii)","(iv)","(v)"),("Fertilisation","Fimbriae","insemination","eggs","middle piece"):}`
B. `{:("(i)","(ii)","(iii)","(iv)","(v)"),("insemination","ampullary isthmic junction","fertilisation","additional sperms","acrosome"):}`
C. `{:("(i)","(ii)","(iii)","(iv)","(v)"),("ovulation","ampulla","fertilisation","additional sperms","tail"):}`
D. `{:("(i)","(ii)","(iii)","(iv)","(v)"),("parturition","isthmus","insemination","eggs","acrosome"):}`

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Context**: The paragraph discusses the process of fertilization, starting from copulation to the entry of sperm into the ovum.

2. **Identifying the First Blank (i)**: The semen released during copulation is referred to as "insemination." Therefore, the first blank should be filled with "insemination."

**Fill in**: (i) insemination

3. **Identifying the Second Blank (ii)**: The ovum released by the ovary is transported to the "fallopian tube." Thus, the second blank should be filled with "fallopian tube."

**Fill in**: (ii) fallopian tube

4. **Identifying the Third Blank (iii)**: Fertilization occurs in the fallopian tube, specifically at the ampullary-isthmic junction. Therefore, the third blank should be filled with "ampullary-isthmic junction."

**Fill in**: (iii) ampullary-isthmic junction

5. **Identifying the Fourth Blank (iv)**: During fertilization, changes in the ovum's membrane block the entry of additional sperm, preventing polyspermy. Thus, the fourth blank should be filled with "additional sperm."

**Fill in**: (iv) additional sperm

6. **Identifying the Fifth Blank (v)**: The secretions that help the sperm enter the cytoplasm of the ovum come from the "acrosome." Therefore, the fifth blank should be filled with "acrosome."

**Fill in**: (v) acrosome

**Final Completed Paragraph**:
During copulation (coitus) semen is released by the penis into the vagina and is called (i) **insemination**. The ovum released by the ovary is transported to the (ii) **fallopian tube** where (iii) **ampullary-isthmic junction** takes place during fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes in the membrane that block the entry of (iv) **additional sperm**. The secretions of the (v) **acrosome** help the sperm enter into the cytoplasm of the ovum.

---