Answer:
This question lacks options, the options are:
A) FF and ff
B) FF and Ff
C) Ff and Ff
D) Ff and ff
The answer is D (Ff and ff for parent 1 and 2 respectively)
Explanation:
This question depicts a single gene coding for fur colour in mice. The gene controls two traits, black fur and white fur, encoded by alleles F and f respectively.
According to the question, a pair of mice has been bred several times to generate the same data of 22 black fur and 23 white fur mice. Based on this data, it shows that the phenotypic ratio of black to white mice is 1:1.
To get a 1:1 phenotypic ratio of black fur offspring to white fur offspring, the parents mice must have genotypes Ff (heterozygous) and ff (same recessive alleles).
In a cross between parents Ff × ff (see punnet square), offsprings with the following genotypes will be produced: Ff, Ff, ff and ff. Ff is black furred while ff is white furred.
Ff (2) : ff (2) is equivalent to Ff (1) : ff (1).
Hence, a data of 22 black mice and 23 white mice which represents a 1:1 ratio will only be produced by parents mice with genotypes: Ff and ff.
The conservation of forests is vital to our ecosystems, because they provide sustainable amounts of habitat for animals, who live in them. On top of that, forests provide us with a large amount of oxygen. Trees go through photosynthesis, in which they take in carbon dioxide out of our air, and give back oxygen which is vital for all living things. All that being said, conserving trees helps regulate climate control, and overall helps us have healthy ecosystems.
<h3><u>Answer;</u></h3>
<em>A. continental-oceanic convergent</em>
<h3><u>Explanation;</u></h3>
- <em><u>A convergent boundary</u></em> is a type of boundary where two plates collide and push against one another.
- <em><u>A continental-oceanic convergent</u></em> is a type of convergent boundary that occurs as a result of <em><u>subduction.</u></em> <em><u>Subduction occurs where a continental plate collide thus resulting to the oceanic plate being pushed underneath the continental plate</u></em> into the mantle since the oceanic plates are much thinner.
- The result is that <em><u>the oceanic plates melts into hot magma which that burns its way up through the continental plate</u></em> forming a volcano and also causing earth quakes.
1 and 2
(every organism is genetically unique)
(provides variety of offspring)
