The question asks about the primary determinant of sex in human offspring. We need to identify the biological mechanism responsible for sex determination in humans and distinguish it from factors that might influence sex in other species or are irrelevant to human sex determination.
Correct Option: D) Genetic constitution. In humans, sex is determined by the sex chromosomes inherited from the parents. Females have XX chromosomes, and males have XY chromosomes. The egg always carries an X chromosome. The sperm can carry either an X or a Y chromosome. If an X-carrying sperm fertilizes the egg, the child will be female (XX). If a Y-carrying sperm fertilizes the egg, the child will be male (XY). Thus, the genetic makeup, specifically the presence or absence of the Y chromosome, determines the sex.
Find the simple interest (in closest integral ₹) on ₹4,000 at 5.25% per annum rate of interest for the period from 12 February 2024 to 13 April 2024.
To calculate the simple interest, we need to determine the principal amount, the annual rate of interest, and the time period in years. The time period is given in days, so we must convert it to a fraction of a year. We also need to account for whether the year is a leap year or not.
Identify the given values:
Determine the number of days for the interest period:
Convert the time period to years:
Since 2024 is a leap year, the total number of days in the year is 366.
\[ T_{\text{years}} = \frac{\text{Number of days}}{\text{Days in a leap year}} = \frac{62}{366} \text{ years} \]Calculate the Simple Interest (SI):
The formula for simple interest is:
\[ \text{SI} = \frac{P \times R \times T}{100} \]Substitute the values:
\[ \text{SI} = \frac{4000 \times 5.25 \times \frac{62}{366}}{100} \] \[ \text{SI} = \frac{4000 \times 5.25 \times 62}{100 \times 366} \] \[ \text{SI} = \frac{40 \times 5.25 \times 62}{366} \] \[ \text{SI} = \frac{210 \times 62}{366} \] \[ \text{SI} = \frac{13020}{366} \] \[ \text{SI} \approx 35.57377 \]Round to the closest integral ₹:
The closest integral value to ₹35.57377 is ₹36.
B) 35
My calculation gives approximately ₹35.57. If we round to the nearest integer, it would be ₹36. However, if the question implies rounding down or if there's a slight difference in interpretation of "closest integral ₹\
The question asks about the ministry responsible for declaring India's Foreign Trade Policy. To answer this, one needs to identify the government body that oversees and formulates policies related to India's international trade.
Correct Option: A) Ministry of Commerce and Industry is the correct answer because it is the nodal ministry responsible for formulating and implementing India's Foreign Trade Policy, which guides the country's import and export activities.
The question asks to identify India's first civilian space tourist. This requires knowledge of recent space tourism developments and individuals associated with them.
Correct Option: D) Gopichand Thotakura
Gopichand Thotakura is an Indian-American entrepreneur and pilot who became the first Indian civilian space tourist. He flew to space on Blue Origin's New Shepard NS-25 mission on May 19, 2024. This mission took him past the Kármán line, the internationally recognized boundary of space.
The question asks for an effective method to reduce plastic waste. We need to evaluate each option based on its environmental impact and effectiveness in waste reduction.
Correct Option: C) Recycling and reusing plastic materials is an effective method because it reduces the demand for new plastic production, conserves resources, and diverts waste from landfills and incineration, thereby minimizing environmental pollution.
The question asks to identify a natural ecosystem from the given options. An ecosystem is a community of living organisms (biotic components) interacting with their non-living environment (abiotic components). Natural ecosystems are those that develop and function without significant human intervention, whereas artificial or man-made ecosystems are created and maintained by humans.
Correct Option: D) Forest
This is a coding-decoding problem where we need to find the code for a specific word by identifying common words and their corresponding codes across different statements.
Correct Option: D) ph
To find the average of a series of natural numbers, we can use the formula for the sum of an arithmetic progression and then divide by the count of numbers. Alternatively, for a series of consecutive natural numbers, the average is simply the average of the first and the last number.
Identify the series: The natural numbers from 1 to 91 are \(1, 2, 3, \dots, 91\).
Recognize the type of series: This is an arithmetic progression (AP) where the common difference is 1. The first term (\(a\)) is 1, and the last term (\(l\)) is 91.
Method 1: Using the formula for average of an AP
For an arithmetic progression, the average is given by the formula:
In this case, the first term is 1 and the last term is 91.
\[ \text{Average} = \frac{1 + 91}{2} = \frac{92}{2} = 46 \]Method 2: Using sum and count (more general but longer for this case)
The sum of the first \(n\) natural numbers is given by the formula:
Here, \(n = 91\).
\[ S_{91} = \frac{91(91+1)}{2} = \frac{91 \times 92}{2} = 91 \times 46 = 4186 \]The average is the sum divided by the number of terms:
\[ \text{Average} = \frac{\text{Sum of numbers}}{\text{Count of numbers}} = \frac{4186}{91} = 46 \]B) 46 is the correct average of all natural numbers from 1 to 91.
The question asks about the unique property of carbon that enables it to form extensive structures like long chains and rings. This property is fundamental to organic chemistry and is known as catenation.
Correct Option: C) Ability to form strong covalent bonds with other carbon atoms
The problem asks us to identify the odd one out from a group of four letter clusters. The rule for grouping is based on the English alphabetical order. We need to find a pattern or relationship between the letters within each cluster and see which cluster does not follow that pattern.
From options B, C, and D, we observe a consistent pattern in the differences between the alphabetical positions of consecutive letters:
This means the second letter is 3 positions before the first letter, and the third letter is 1 position after the second letter.
For FHD: \(6 \xrightarrow{+2} 8 \xrightarrow{-4} 4\)
This pattern (+2, -4) is different from the (-3, +1) pattern found in options B, C, and D.
Therefore, FHD is the one that does not belong to the group.
A) FHD is the odd one out because the pattern of alphabetical position differences (+2, -4) is different from the pattern (-3, +1) observed in the other options.