Answer:
homo-zygous lethal dominant
Explanation:
A homo-zygous lethal pattern is a type of inheritance where an allele is lethal in homo-zygous individuals. In normal dominance, the expected genotype ratio when F1 heterozygous individuals are crossed is 1:2:1 (i.e. 1 homo-zygous dominant: 2 heterozygous individuals and 1 homo-zygous recessive), while the phenotypic ratio is 3:1 (3 individuals expressing the dominant allele: 1 individual only expressing the recessive allele). In this case, the homo-zygous lethal allele changes the expected F2 phenotypic ratio to 2:1 (i.e., 2 heterozygous singing Beetles : 1 homo-zygous recessive non-singing Beetles), where the partially dominant allele is lethal in homo-zygous individuals.
Answer:
The respiratory system.
Explanation:
The circulatory system works with the respiratory system. The circulatory system transports oxygen through the body, while the respiratory system supplies the body with that oxygen.
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2. i believe is dna
3. i believe is reproduction
Answer:
Convent bonding of cross linking constrain polymer chains from relative movements. the degree of cross linking will correlate with the stiffness of the polymer. highly cross-linked polymers will also have a high resistance to creep as the chains cannot move into new positions.
Explanation:
Answer:
Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.
Explanation: