Sex determination in Melandrium is _____ type and has been stutied in detail by _____ respectively.

Options

A. XX-XO, R.P. Roy
B. XX-XY, Allen
C. XX-XY, Warmke
D. XO-,XX Bridge

Answer

To solve the question regarding sex determination in Melandrium, we can follow these steps:

### Step 1: Identify the type of sex determination in Melandrium
- Melandrium exhibits a sex determination system where males and females have different sex chromosomes. In this case, the male is heterogametic (XY) and the female is homogametic (XX).

### Step 2: Recall the researchers associated with Melandrium
- The question asks for the researcher who studied this sex determination system in detail. From the options provided, we need to identify the correct researcher.

### Step 3: Match the correct type of sex determination with the researcher
- The correct combination from the options given is "XXXY Warnicke." This indicates that the sex determination in Melandrium is of the XX-XY type and has been studied in detail by H.E. Warnicke.

### Final Answer
Sex determination in Melandrium is **XX-XY type** and has been studied in detail by **H.E. Warnicke**.

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