The following is the flowchart for description of cockroach sexual dimorphism. Label the identification characters 1., 2., 3., and 4.with correct options
The following is the flowchart for description of cockroach sexual dimorphism. Label the identification characters 1., 2., 3., and 4.with correct options
The correct option is A 1.2 pairs of Analstyles; 2.Phallomeres; 3.Boat shaped abdomen; 4.1 Pair of Analstyles.
In cockroach the sexes are separate,meaning that the male and female insects are separate and different in appearance; and show identification characters like:
Male- 1. Pair of Anal styles and 2. External genitalia called Phallomeres.
Female - 3. No anal styles and 4. Boat shaped abdomen.
So the correct option for the flowchart is A.
The abdomen in both males and females consists of 10 segments. In females, the 7th sternum is boat shaped and together with the 8th and 9th sterna forms a brood or genital pouch whose anterior part contains female gonopore, spermathecal pores and collateral glands. In males, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum. It contains dorsal anus, ventral male genital pore and gonapophysis. Males bear a pair of short, threadlike anal styles which are absent in females. In both sexes, the 10th segment bears a pair of jointed filamentous structures called anal cerci.
The external genitalia are represented by male gonapophysis or phallomere.
1.2 pairs of Analstyles; 2.Phallomeres; 3.Boat shaped abdomen; 4.1 Pair of Analstyles.
In cockroach the sexes are separate,meaning that the male and female insects are separate and different in appearance; and show identification characters like:
Male- 1. Pair of Anal styles and 2. External genitalia called Phallomeres.
Female - 3. No anal styles and 4. Boat shaped abdomen.
So the correct option for the flowchart is A.
The abdomen in both males and females consists of 10 segments. In females, the 7th sternum is boat shaped and together with the 8th and 9th sterna forms a brood or genital pouch whose anterior part contains female gonopore, spermathecal pores and collateral glands. In males, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum. It contains dorsal anus, ventral male genital pore and gonapophysis. Males bear a pair of short, threadlike anal styles which are absent in females. In both sexes, the 10th segment bears a pair of jointed filamentous structures called anal cerci.
The external genitalia are represented by male gonapophysis or phallomere.
