Answer:
you expect to see that 75% of your F2 generation rabbits have floppy ears and 25% of your rabbits have black fur.
Explanation:
<u> Available data:</u>
- Two true-breeding groups of rabbits.
- The first group has floppy ears and white fur.
- The second group has straight ears and black fur.
- 100% of the F1 generation has floppy ears and gray fur.
- Each of these traits is determined by a single gene and undergo independent assortment.
Having this information we can infer that floppy years, expressed by F allele, might be dominant over straight ears, expressed by f allele. And that the fur color is affected by incomplete dominance, being B the allele expressing black color, b the allele expressing white color and Bb the genotype for grey color.
Incomplete dominance is a condition where neither of the alleles completely dominates over the other one. Descendents possess an intermediate phenotype between the two parental phenotypes and not the dominant one.
Cross between groups
Parental) FFbb x ffBB
F1) FfBb
<u>Cross for the ear traits:</u>
Parental) Ff x Ff
Gametes) F f F f
Punnet square) F f
F FF Ff
f Ff ff
F2) 75% of the progeny have floppy ears, FF and Ff
25% of the progeny have straight ears, ff
<u>Cross for the fur color traits</u>:
Parental) Bb x Bb
Gametes) B b B b
Punnet Square) B b
B BB Bb
b Bb bb
F2) 25% of the progeny have black fur, BB
50% of the progeny have grey fur, Bb
25% of the progeny have white fur, bb
Answer:
81/256
Explanation:
By doing a test cross of albinism and sickle cell anemia you'll see that the probability that one child is unaffected by either conditions will be 9/16. Both children would be 9/16 * 9/16.
Since fraternal twins are developed from two separate fertilization events the probability chance will be independent.
Answer:
The cloned sheep is the result of nuclear fusion from two different sheeps. In one sheep the enucleated egg is fused with DNA of another sheep.
Explanation:
The cloned sheep is the result of nuclear fusion of 2 different sheep. In the cloning process, the egg cell of one sheep was enucleated. Then a DNA from another sheep had taken and put into the enucleated egg cell to fuse. Then the egg allowed to divide in the laboratory to the blastocyst stage. The blastocyst incorporated into a surrogate mother or a third sheep. The surrogate mother after some months gives birth to the cloned sheep.
The sheep produced by normal reproduction has the DNA of two parents. The sheep have two parents and resemble their parents.
In cloned sheep, there is no biological parent and have DNA of the donor sheep. That means the cloned sheep has a gene of a single sheep not the DNA of others. Because the egg cell was enucleated before the cloning process. The sheep are more like the donor DNA sheep not like the surrogate mother.
Answer:
c. sarcopenia
Explanation:
Muscle cells are involved in movements. Skeletal muscles are one of the types of muscles present in the body that are responsible for voluntary movements. As the person ages, the skeletal muscles of the body experience a progressive reduction of their mass. The systemic reduction in muscle mass also adversely affects their functions. The condition is called sarcopenia. Significantly reduced muscle mass results in several functional disabilities. Sarcopenia is the reason that the person with increasing age is more likely to be affected with muscular disorders.
Answer:genetic make up was not affected
Explanation:outside factors can not alter someone's genetic traits;as twins no matter where they are and what environment they are in they will still possess similar genes.
