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3 years ago

Parents that are heterozygous for having freckles (dominant) are crossed. Which represents the ratio of their offspring?

2 answers:

7 0

In a cross of parents heterozygous for having freckles, the ratio of their offspring is (C) Seventy-five percent have freckles. Let allele F be dominant and allele f be recessive. Heterozygous parents will have genotype Ff. After they cross (Ff x Ff), the offspring will be: 1 FF (with freckles), 2 Ff (with freckles), and 1 ff (without freckles). So, 3 out of 4 children will have freckles. Since 3/4 = 0.75 = 75%, 75% of offspring will have freckles.

pickupchik [31]3 years ago

4 0

The answer to the question is C, the one that represents the ratio of their offspring is seventy-five percent have freckles. Since the genotypes of the posterity are FF, Ff, Ff, and ff. Since spots (capital F) are prevailing, and they are in 3 out of 4 of the genotypes, 75% will have spots.

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Which of the following statements correctly determines the process when following the scientific method?

crimeas [40]

Answer:

A) Formulate question,conduct research,propose hypothesis,test hypothesis

Explanation:

The scientific method is pertinent to the success of a scientific experiment. The scientific method is a sequential steps of processes involved in an experimentation. The correct order of steps that determines the process when following the scientific method are:

1) Formulate question: Asking a question about what has been previously observed is the key to starting a scientific method.

2) Conduct research: Research is done based on a previous observation that has been made by in order to gather necessary information.

3) Propose hypothesis: A hypothesis is a predictive statement or explanation to an asked question about the experiment that can be tested. It usually goes in an IF, THEN format.

4) Test hypothesis: As stated in the previous step, a hypothesis must be testable, which is done by conducting an experiment. The outcome of the experiment proves or disproves the hypothesis.

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3 years ago

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Answer: 1800 centimeters is the largest measurement

Explanation:

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2.1 m = 0.0021 km

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sweet [91]

Answer:

Explanation:

because

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3 years ago

In summer squash, white fruit (H) is dominant over yellow (h), and the flattened disc-shaped fruit (D) is dominant over the sphe

Alekssandra [29.7K]

Answer:

a. It is a dihybrid cross

b. 0%

c. 0%

d. 0%

e. 100%

f. 0%

g. 0%

Note: Answers are given assuming that hhRD = hhDD

Explanation:

a. The cross, HHdd x hhDD is a dihybrid cross involving two traits: fruit colour and fruit shape

2. Gametes produced in the cross are given below:

for HHdd= Hd and Hd

For hhDD = hD and hD

Offspring produced in the cross:

All HhDd, which represents white and the flattened disc-shaped fruit white since They are both dominant characters.

b. Percentage of the offspring from this cross expected to have the HHDD genotype = 0%

c. Percentage of the offspring from this cros expected to have the hhDD genotype = 0%

d. Percentage of the offspring from this cross expected to have the HhDd genotype = 0%

e. Percentage of the offspring from this cross are expected to produce white and disc-shaped fruits (HHDD or HhDD or HhDd) = 100%

f. Percentage of the offspring from this cross expected to produce white and spherical fruits (HHdd or Hhdd) = 0%

g. Percentage of the offspring from this cross expected to produce yellow and disc-shape (hhDD or hhDd) = 0%

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Answer:

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