Recessive alleles are identified experimentally by: 1. By observing their dominance in crosses 2. By crossing potential carriers with homozygous dominant individuals 3. By crossing... Recessive alleles are identified experimentally by: 1. By observing their dominance in crosses 2. By crossing potential carriers with homozygous dominant individuals 3. By crossing potential carriers with heterozygous individuals 4. By examining their influence on multiple traits. What term describes zygotes carrying two identical alleles for a gene? 1. Heterozygous 2. Dominant 3. Homozygous 4. Recessive
Understand the Problem
The question is asking about the experimental identification of recessive alleles and the terminology related to zygotes carrying identical alleles for a gene. It focuses on genetic concepts.
Answer
1. C: By crossing with heterozygous individuals 2. C: Homozygous
The final answer is:
- C: By crossing potential carriers with heterozygous individuals
- C: Homozygous
Answer for screen readers
The final answer is:
- C: By crossing potential carriers with heterozygous individuals
- C: Homozygous
More Information
Recessive alleles are identified by seeing whether they express in a heterozygous cross, while 'homozygous' refers to having two identical alleles.
Tips
A common mistake is confusing homozygous with heterozygous. Remember, homozygous means the two alleles are the same.
Sources
- Monohybrid Cross - an overview | ScienceDirect Topics - sciencedirect.com
- 8.2 Laws of Inheritance – Concepts of Biology - opentextbc.ca
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