Ch.14 - Mendelian GeneticsWorksheetSee all chapters
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Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

Solution: A brown mink is crossed with a silver mink. They produce all brown F1 offspring. These brown F1 offspring were crossed among themselves. What is the ratio of offspring would these F1s produce?A. 60 brown and 0 silverB. 45 brown and 15 silverC. 30 brown and 30 silverD. 60 silver and 0 brown.

Problem

A brown mink is crossed with a silver mink. They produce all brown F1 offspring. These brown F1 offspring were crossed among themselves. What is the ratio of offspring would these F1s produce?

A. 60 brown and 0 silver

B. 45 brown and 15 silver

C. 30 brown and 30 silver

D. 60 silver and 0 brown.

Solution

For a gene that is being passed down a generation, it should be remembered that between two alleles (if both are present in an organism), the dominant allele will always be expressed and the presence of this dominant allele will mask the expression of any recessive alleles present.

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