Answer:
Offspring in F1 generation had yellow-seeded pea plants.
Explanation:
When Mendel used yellow-seeded and green-seeded pea plants as parents plants he noticed that all of the offspring of the first generation (F1) were yellow-seeded plants. In the next following generation (F2), phenotype ratio was 3:1 (yellow:green).
After this observation Mendel conclude that yellow-seeded plants are dominant over green-seeded plants. Since he used purebred plants, genotypes were:
P: AA x aa
F1: Aa Aa Aa Aa
F2: AA Aa Aa aa
AA and Aa are genotypes for the yellow seeds, while aa is genotype for green seeds.
I had this question on one of my lessons the answer is 15.
Answer:
Rabbits with thicker fur would survive, others would die off
Explanation:
I guess the answer would be the first one
Answer:
1/64
Explanation:
The following genotypes were crossed: AaBbCc X+Xr and AaBBcc X+Y
If we asume that the autosomal genes are in different chromosomes, then they will assort independently during meiosis and gametogenesis. In that case, we can use the Multiplication Rule of Probability to obtain the probability of having a specific genotype in the progeny.<u> This rule states that when two or more events are independent, the probability of all them happening at the same time will be the result of the multiplication of the individual probabilities of each event.</u>
<u />
We can separate each gene in the cross to determine the genotypic ratios in the offspring, and then multiply the probabilities of the aaBbCc X+X+ genotypes to obtain the overall probability of having progeny with that genotype.
<h3><u>Aa x Aa
</u></h3>
1/4 AA
2/4 Aa
1/4 aa
<h3><u>Bb x BB
</u></h3>
1/2 BB
1/2 Bb
<h3><u>Cc x cc
</u></h3>
1/2 Cc
1/2 cc
<h3><u>
X+Xr x X+Y</u></h3>
1/4 X+X+
1/4 X+Y
1/4 X+Xr
1/4 XrY
The probability of having offspring with the aaBbCc X+X+ genotype will be: 1/4 × 1/2 × 1/2 × 1/4 = 1/64
In any ecosystem two factors interact together are abiotic factors and biotic factors. Abiotic factors include non-living such as soil, air, water and climatic factors ( temperature, humidity, rainfall or precipitation) whereas, biotic factors includes all the flora (plants) and fauna (animals). These two factors interact through food chains to function an ecosystem.
