This is about animal sciences. Please answer all parts of numbers: 6 , 7, 8. 6.

Question

This is about animal sciences. Please answer all parts of numbers: 6 , 7, 8.

6. Please indicate if the following statements are True (T) or False (F) (1 pt, 0.2 pts each). T/F The phenotype for a recessive trait will only be expressed in homozygous animals Callipyge is the development of muscle instead of fat around the pelvis in sheep Red blood cells contain DNA. Genetic mutation will always negatively impact an animal. The increase in heat resistance genes leads to decrease in economic losses from heat stress is a positive correlation. State which of the following are considered qualitative (QUAL) or quantitative (QUANT) traits (1 pt, 0.2 pts each). 7. Average daily gain % fat in milk Blood type Coat color Feed efficiency QUAL/QUANT Quant avint Gua Quint

Explanation / Answer

6.

A recessive phenotype is observed only in homozygous condition: TRUE

The callipyge mutation leads to muscle hypertrophy: TRUE

Red blood cells do not contain DNA.

Genetic mutations are often beneficial to animals.

The increase in heat resistance genes leads to decrease in economic losses from heat stress. It is a negative correlation.

7.

Average daily gain = Quantitative

Percent fat in milk = Quantitative

Blood type = Qualitative

Coat colour = Quantitative

Feed efficiency = Qualitative

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