Answer:
Hope this helps!!!!!!!!!!!!!!
Explanation:
Answer:
The muscle fibers are pulled by the myosin and sarcomere together, resulting in the shortening of the fibres, but the sarcomere and myosin just move.
Explanation:
During muscle contraction, each sarcomere shortens, bringing the Z discs close together. There is no change in the width of the A band but both I bands and the H zone almost completely disappear. These changes are explained by actin and myosin filaments sliding past one another, so that the actin filaments move into A band and H zone. Muscle contraction thus results from an interaction between the actin and the mosin filaments that generates their movement relative to one another. The molecular basis for this interaction is the binding of the myosin to actin filaments that generate their movement relative to one another.
Oh, we actually did a similar project in my biology class!
I looked at your punnet squares and they all looked right to me, so I will just explain how to find the genotype and phenotype.
Ok, so let me explain that for genotype they mean the letters, so for example if the penguin has a dominant trait, the genotype could be Ff, or recessive could be ff. By phenotype they mean the trait expressed, so if the penguin is dominant for freckles, the phenotype would be has freckles.
Now I don't know what your teacher wants you to do, but in my class we just flipped a coin to decide whether we would use the dominant or recessive trait.
Hopefully that clears it up a little bit for you :)