Explanation for the above mentioned state:
- Shaking and kneading of ice cream mixture releases energy and because of this ice may melt further and hence salt is added to maintain the required temperature.
- With kneading of ingredients the size of air bubbles decreases, distributing the fat molecules evenly and giving a more smoother texture to ice cream.
- Whereas with shaking of ingredients, it helps to move the warm mixture from inside to outside so that freezing can occur evenly.
- Yes the hands get very cold while shaking the bag as transfer of energy take place and it can also lead to numbness for some time.
A) True
Your genes determine your traits, your genes are made of DNA.
Answer:
C. A1A2, A1A3
Explanation:
This question depicts a gene coding for coloration in a flowering plant. The gene is controlled by multiple alleles, three specifically. The alleles are labelled A1, A2, and A3, with each coding for it's own respective trait.
According to the question, A1 is dominant over A2 and A3 i.e. A1 will always mask the phenotypic expression of A2 and A3 and express itself. Also, A2 is dominant over A3 i.e. A2 will always mask the phenotypic expression of A3. This overall means that the trait encoded by allele A3 will only be expressed when the same alleles are present.
To the question; since A1 is dominant over the other two alleles (A2 and A3), it will be phenotypically expressed ahead of them in a heterozygous state with both alleles. That is, A1A2 genotype will give rise to a phenotype encoded by A1. Also, A1A3 will produce a phenotype encoded by A1. Hence, genotypes A1A2 and A1A3 will express the same phenotypes.
A2A2 and A3A3 will express different phenotypes since they are both in a same alleles condition. Likewise for A1A1 and A3A3. A2A3 and A1A3 genotypes will express different phenotypes encoded by A2 and A1 respectively since they are both dominant over A3.
