PLEASE HELP!!!

1 answer:

6 0

Genes are segments of DNA located on chromosomes. A gene mutation is defined as an alteration in the sequence of nucleotides in DNA. This change can affect a single nucleotide pair or larger gene segments of a chromosome. DNA consists of a polymer of nucleotides joined together. During protein synthesis, DNA is transcribed into RNA and then translated to produce proteins. Altering nucleotide sequences most often results in nonfunctioning proteins. Mutations cause changes in the genetic code that lead to genetic variation and the potential to develop the disease. Gene mutations can be generally categorized into two types: point mutations and base-pair insertions or deletions.

You might be interested in

Explain why the two alleles, ia and ib, that produce the ab blood type are said to be codominant.

laiz [17]

Alleles can be recessive or dominant, when this happens the dominant allele is expressed. However, neither a nor b blood group is a recessive allele, so both are expressed in the individual.

7 0

3 years ago

Which resource below is nonrenewable

valentinak56 [21]

A nonrenewable resource is a resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption. Most fossil fuels, such as oil, natural gas and coal are considered nonrenewable resources in that their use is not sustainable because their formation takes billions of years.

8 0

3 years ago

Read 2 more answers

A maternal effect can cause the offspring phenotype ratio to depart from that of classic Mendelian inheritance. In a species of

MArishka [77]

Answer:

A. 4 right handed coil:0, left- handed coil

Explanation:

According to MENDELION CROSS:

We will get NN, Nn,Nn,nn

NN, Nn, Nn are the 3 right handed coiling and nn is left handed coiling.

But in case of shell coiling in snails, maternal inheritance is applied in which offspring is decided only by phenotype.