The Following Is Known About the Inheritance of Size and Fur

question 34

Multiple Choice

The following is known about the inheritance of size and fur color in Holland lop rabbits:
•Crosses between large individuals only produce large individuals.
•Crosses between dwarf individuals produce both large and dwarf rabbits in a ratio of 1:2.Such crosses also produce some very small kits (baby rabbits) that generally die within a few days.
•Crosses between brown rabbits only produce brown kits.
•Some crosses between black rabbits produce only black kits,whereas others produce both black and brown kits.
•The size and fur-color phenotypes segregate independently.
-What are the expected phenotypes in the F₁ of a cross between a dwarf rabbit that breeds true for brown fur color and a large rabbit that breeds true for black fur color?

• A)black dwarf only
• B)black dwarf and black large only
• C)brown dwarf and black dwarf only
• D)brown dwarf,brown large,black dwarf,and black large
• E)brown large only

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Definitions:

Chemoaffinity Hypothesis

The theory that nerve cells establish correct connections based on specific chemical signals.

Piaget's Stages

Piaget's stages refer to the four stages of cognitive development proposed by Jean Piaget, which describe how children's understanding of the world changes as they grow: sensorimotor, preoperational, concrete operational, and formal operational.

Development

The process of growth and change that a living organism undergoes, allowing it to acquire more complex physiological functions and behaviors.

Frontal Lobes

The frontal lobes are regions of the brain located behind the forehead that are responsible for voluntary movement, expressive language, and managing higher level executive functions.