Biology

Genetics and Plant Breeding

1,240 Questions

Genetics and Plant Breeding explores the principles of heredity, chromosomal inheritance, and hybridization techniques. It includes key concepts like Mendelian genetics, gene linkage, and polygenic inheritance. This topic is essential for students tackling advanced biology or botany sections in competitive examinations.

Mendelian InheritanceChromosome TheoryGene LinkagePolygenic InheritancePlant HybridizationPopulation Genetics Equilibrium

Genetics and Plant Breeding Questions

Multiple choice general knowledge science & technology
  1. Oryza sativa

  2. Ficus Bengalensis

  3. Pisum sativum

  4. Alliivum sativa

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gregor Mendel used Pisum sativum (garden pea) for his groundbreaking genetics experiments on inheritance patterns. The other options are incorrect: Oryza sativa is rice, Ficus bengalensis is the banyan tree, and Allium sativum (not Alliivum) is garlic - none were Mendel's experimental organism.

Multiple choice general knowledge
  1. DL Genetic

  2. DL Generation

  3. DL Gap

  4. DL General

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The question appears to reference Tata Indica car variants/trim levels. Without authoritative documentation on what "DLG" specifically means in this context, this cannot be reliably verified. DLG may refer to a specific generation, model designation, or trim package of the Tata Indica.

Multiple choice general knowledge sports
  1. True

  2. False

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Humans share approximately 99.9% genetic identity with each other, reflecting our recent evolutionary origin as a species. Humans and chimpanzees share about 98-99% of their DNA sequence, consistent with our close evolutionary relationship as primates. These figures are well-established in genetics.

Multiple choice general knowledge
  1. A

  2. B

  3. O

  4. Both A and B

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Genes for both A and B antigens are dominant over O. This means if a person inherits an A gene from one parent and a B gene from the other, they will have AB blood type (both antigens expressed). The O allele is recessive and only expressed when no A or B is present.

Multiple choice general knowledge
  1. A cross between a cabbage and a turnip

  2. A cross between a parsnip and a beetroot or

  3. A cross between fennel and carrots.

  4. A cross between carrots and raddish

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Swede (also called rutabaga in North America) is indeed a cross between a cabbage and a turnip, developed in the 17th century. It's larger and sweeter than a turnip, with yellow-orange flesh. The vegetable originated from Sweden (hence the name) and is a common winter vegetable in Northern European cuisine.

Multiple choice general knowledge science & technology
  1. A

  2. O

  3. AB

  4. B

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For a child to have blood type A when the mother is blood type B, the father must contribute an A allele. If the father is blood type AB, his genotype is AB, meaning he can pass either an A or B allele to the child. When he passes the A allele and the mother (who could be genotype BO) passes her O allele, the child would have blood type A (genotype AO). This is the only option among the choices that guarantees the father can contribute an A allele.

Multiple choice softskills leadership
  1. sameness

  2. pertaining to tailors or tailoring

  3. having a common ancestor

  4. worthless products of an endeavor

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Consanguineous means having a common ancestor - related by blood or descended from the same stock. Option C is correct. Options A (uniformity), B (tailoring-related), and D (waste products) are incorrect.

Multiple choice softskills leadership
  1. keeping watch (during normal sleeping hours)

  2. push forward

  3. hybridize

  4. contend

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Crossbreed means to produce a hybrid by mating two different breeds or varieties. It does not mean keeping watch, pushing forward, or contending.

Multiple choice technology databases
  1. CHILD

  2. DEPENDENT

  3. TWIN

  4. SIBLINGS

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In IMS database terminology, when a parent segment has multiple occurrences of the same child segment type, those child segments are called 'twins'. For example, if an ORDER segment has multiple LINE-ITEM segments of type 'LINE-ITEM', those LINE-ITEMs are twins of each other under that ORDER.