In a plant species, a segregating line (RR- Red, Rr- Pink and rr- white) that contains both homozygotes and heterozygotes at a locus can be made homozygous by repeated selfing for several generations. What is the proportional red flower in third generations of selfing, if the level of heterozygosity in generation '0' is denoted as 1?

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#Question id: 11078

#Unit 7. System Physiology – Animal

A child has been eating round candies approximately 1 and 1.5 cm in diameter and inhaled one down his airway blocking his left bronchiole. Which of the following will describe the changes that occur?

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#Question id: 11711

#Unit 9. Diversity of Life Forms

The Irish potato famine was caused by an organism that belongs to which group?

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#Question id: 28308

#Unit 5. Developmental Biology

Capacitated mammalian sperm has the capacity to sense thermal differences such as

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#Question id: 2960

#Unit 2. Cellular Organization

Which type of spindle microtubules are attached to chromosomes?

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#Question id: 23983

#Unit 8. Inheritance Biology

A large chromosomal aberrations can be detected by staining in the chromosomal banding pattern that have been stained with banding agent such as quinacrine or Giemsa, which statement correct predict that the chromosome undergo for duplication?