Answer:
a. Heterozygous individuals may pass on their copy of the disease-causing allele to offspring.
Explanation:
Tay-Sachs, which is a recessive lethal disease ---- Let say the recessive lethal diseases is s
∴ it only results when an individual posses two copies of the diseases-causing allele i.e two copies of the disease will be ss.
Now, when two hetrozygous individuals crossed , it is obvious that each can pass on their copy of the disease-causing allele to the offspring.
Let show an illustration for the above statement.
Let the heterozygous individual be Ts, if Ts cross with another Ts;
we will have:
Ts × Ts
T s
T TT Ts
s Ts ss
the offspring are TT,Ts,Ts,ss
We can now see how the Heterozygous individuals pass on their copy of the disease-causing allele to the offspring (Ts).
It rains, water moves and erodes the land and creates valleys and rivers.
Answer:
Explanation:
Types of Mutations. There are a variety of types of mutations. ...
Chromosomal Alterations. Chromosomal alterations are mutations that change chromosome structure. ...
Point Mutations. A point mutation is a change in a single nucleotide in DNA.
Answer:
Density
Explanation:
Density is refer to how much space an object in Mass take in volume.
It is mass if an object divided by volume.
It usually in g/cm3
