This was Lamarck's idea. Here's an example: Suppose giraffes originally had short necks that they stretched to reach high-up leaves in the trees. This continuous stretching of the neck was passed onto offspring, who as a result had slightly longer necks. This continued for multiple generations until we get today's long-necked giraffe. Lamarck was on to something (that something being evolution by natural selection, which Darwin discovered), but his theory wasn't completely correct since organisms can only pass on genes (segments of DNA that code for a characteristic or function) to their offspring. Since "stretching" would not code into DNA, it wouldn't be passed onto offspring, proving Lamarck's theory incorrect.
Answer:
Heterozygous
Explanation:
A genotype describes which alleles of a particular gene a person has. We have two copies (alleles) of each gene, one from mom and one from dad, but these alleles can be different.
Often, these alleles can be dominant and recessive with regards to eachother. The dominant allele will always be displayed in the phenotype, whereas the recessive will not be presented, as it is masked by the dominant gene. If you have two copies of the dominant gene (homozygous) you will display the phenotype associated with the dominant genotype. If you have two copies of the recessive gene (homozygous) you will display the phenotype of the recessive gene.
If you have one copy of each (heterozygous), you will display the phenotype of the dominant gene, even though your genotype has a copy of each.
Answer:
This shows that once animals were on the surface there were plants for them to eat.
The first sighting of a crescent moon after a new moon
84%
84% of the population of mice would be heterozygous.
<h3>What does heterozygous mean?</h3>
Heterozygous refers to the presence of two different allele types for the same gene. For a single gene, these alleles display two distinct character types. An illustration would be someone with an allele for both brown and black hair.
There are 200 mice in total, 168 of which are brown.
By the Hardy–Weinberg (HW) equilibrium
q² (bb) = (200 - 168) /200 = 32 / 200 = 0.16
q: √ 0.16 = 0.4
p = 1 - q = 1 - 0.4 = 0.6
p² (BB) = 0.6 x 0.6 = 0.36
Thus, 84% of the population of mice would be heterozygous.
<h3>What is meant by population heterozygosity?</h3>
- Given that q2 is significantly smaller than 2pq when q is close to zero and p2 is significantly smaller than 2pq when p is close to zero, rare alleles are mostly found in heterozygotes.
- This is known as population heterozygosity.
To learn more about heterozygous population visit:
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