Question:
If sex index ratio in Drosophila is 0.33, the sexual phenotype of it is:
If sex index ratio in Drosophila is 0.33, the sexual phenotype of it is:
Show Hint
Drosophila's sex determination follows the X:A ratio principle. If X/A < 0.5, it results in a metamale.
Updated On: Mar 12, 2025
- Metamale
- Metafemale
- Female
- Intersex
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Sex Index Ratio
- Sex determination in *Drosophila* depends on the X/A ratio (number of X chromosomes to autosome sets).
- A sex index of 0.33 indicates Metamale.
- Sex determination in *Drosophila* depends on the X/A ratio (number of X chromosomes to autosome sets).
- A sex index of 0.33 indicates Metamale.
Was this answer helpful?
0
0
Top Questions on Genetics
- Study the cross given below:
- Assertion (A): When the two genes in a dihybrid cross are situated on the same chromosome, the proportion of parental gene combinations is much higher than non-parental type.
Reason (R): Higher parental gene combinations can be attributed to crossing over between two genes. - Assertion (A): One of the properties of genetic code is degeneracy.
Reason (R): Some amino acids can be coded by more than one codon. - The number of genes located on human Y chromosome.
- Gynaecomastia is a symptom of
View More Questions
Questions Asked in TS EAMCET exam
- The molecular weight of a gas is 32. If 0.5 moles of the gas occupy 22.4 liters at standard temperature and pressure (STP), what is the density of the gas?
- TS EAMCET - 2025
- Gas laws
- In a photoelectric experiment the incident photons have frequency \( \frac{3}{2} \nu \), where \( \nu \) is the threshold frequency of the material. What is the kinetic energy of the emitted electrons?
- TS EAMCET - 2025
- Kinematics
- A ball is projected vertically up with speed \( V_0 \) from a certain height \( H \). When the ball reaches the ground, the speed is \( 3V_0 \). The time taken by the ball to reach the ground and height \( H \) respectively are:
- TS EAMCET - 2025
- Projectile motion
- If the sum of two vectors is a unit vector, then the magnitude of their difference is:
- A body is projected vertically upward with an initial velocity of 40 m/s. Calculate the maximum height reached by the body. (Take \( g = 9.8 \, \text{m/s}^2 \))
- TS EAMCET - 2025
- Kinematics
View More Questions