Which of the following crosses will produce all heterozygous offspring in the F1 generation?
Which of the following crosses will produce all heterozygous offspring in the F1 generation?
निम्नलिखित में से कौन-सा संकरण (क्रॉस) F₁ पीढ़ी में सभी विषमयुग्मजी संतान उत्पन्न करेगा?
Detailed Solution & Logic
TT × tt
Explanation
-
In genetics, heterozygous means having two different alleles (Tt).
-
Let’s check the crosses:
-
Tt × Tt → Offspring: TT, Tt, Tt, tt → not all heterozygous
-
tt × tt → Offspring: tt only → homozygous
-
TT × tt → Offspring: All Tt → all heterozygous ✅
-
TT × TT → Offspring: All TT → homozygous
Extra fact:
-
This is an example of a monohybrid cross for a single trait.
-
When you cross homozygous dominant × homozygous recessive, all F1 offspring are heterozygous.
-
जेनेटिक्स में हेटेरोजाइगस (Tt) का मतलब है कि दोनों एलली अलग-अलग हों।
-
क्रॉस देखें:
-
Tt × Tt → संतान: TT, Tt, Tt, tt → सभी हेटेरोजाइगस नहीं
-
tt × tt → संतान: tt केवल → होमोज़ाइगस
-
TT × tt → संतान: सभी Tt → सभी हेटेरोजाइगस ✅
-
TT × TT → संतान: सभी TT → होमोज़ाइगस
अतिरिक्त तथ्य:
-
यह मोनोहाइब्रिड क्रॉस का उदाहरण है।
-
जब आप होमोज़ाइगस डॉमिनेंट × होमोज़ाइगस रिसेसिव क्रॉस करते हैं, तो F1 की सभी संतान हेटेरोजाइगस होती हैं।
Similar Practice Questions
Which of the following isotopes is used as a fuel in nuclear power plants for generating electricity?
Which of the following isotopes is used as a fuel in nuclear power plants for...
In stethoscopes, the sound of the heartbeat is transmitted to the doctor’s ears because:
In stethoscopes, the sound of the heartbeat is transmitted to the doctor’s ears because: स्टेथोस्कोप...
What is the SI unit of energy?
What is the SI unit of energy? ऊर्जा की SI इकाई क्या है?
Sodium, carbon and oxygen elements are present in Washing Soda.
Sodium, carbon and oxygen elements are present in Washing Soda. Select the INCORRECT symbol of...
Which of the following is not a member of the Vitamin B Complex?
Which of the following is not a member of the Vitamin B Complex?निम्नलिखित में से...
To modify the magnitude of an alternating voltage without altering its frequency, which principle is applied in the functioning of a transformer?
To modify the magnitude of an alternating voltage without altering its frequency, which principle is...
Which is the largest part of the human brain?
Which is the largest part of the human brain?मानव मस्तिष्क का सबसे बड़ा भाग कौन-सा...