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Y_Kistochka [10]
3 years ago
5

he Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent. What is

the probability the offspring will be heterozygous for this trait? 25% 50% 75% 100%
Biology
1 answer:
Crazy boy [7]3 years ago
5 0

Answer:

50%

Explanation:

Let's make a Punnett square to represent this, with X representing our dominant allele and x our recessive.

One homozygous dominant parent = XX

One heterozygous parent = Xx

      X    X

X   XX  XX  

x    Xx  Xx

So two out of our four outcomes are heterozygous for the trait. That means the answer is <u>B. 50%.</u>

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The genetic code is thought to have evolved to maximize genetic stability by minimizing the effect on protein function of most s
Nikitich [7]

Answer:

The six codons for arginine are the following:

GCA, GCG, GCT, GCC, TCT, TCC

A) Considering the individual bases in each codon, three mutations are possible at each base position. Hence, 3 × 3 × 6 = 54 mutations are possible.

B) Considering the mutations at the 3rd base: 3 × 4 + 1 × 2 = 14 of these mutations are silent mutations.

C) Lysine codons are the following:

TTT, TTC

There are two possible mutations that can give a lys codon.

Hope that answers the question, have a great day!

8 0
3 years ago
Which statement explains how weight is different from mass?
Lera25 [3.4K]

Answer:

Weight is a measure of gravitational pull.

Weight is a type of force which attracts things towards the center of earth. Weight is measured in Newton. Weight depends on the gravity of earth. Weight changes due to change in height. Value of gravity is higher at the center of earth and six times lower at the moon because of no gravitational force of earth.

5 0
2 years ago
Read 2 more answers
What is true about electromagnetic waves from the sun? A. They travel through space without a medium B. They consist of electric
Cloud [144]

Answer:

Option A) is correct.

Explanation:

Electromagnetic waves refer to waves that are created due to vibrations between a magnetic field and an electric field.

Electromagnetic waves do not require a medium to travel through space without a medium. Electromagnetic waves can travel through air,  vacuum of space and solid materials.

So,

Option A) is correct.

3 0
3 years ago
Gregor mendel crossbred pea plants for a variety of traits. What did he learn about dominant and recessive traits?
vladimir1956 [14]
Gregor Mendel crossbred two different pea plants. One of the plants had yellow peas (a dominant trait) and one of the plants had green peas (a recessive trait). The yellow pea plant was heterozygous for its trait meaning its alleles will be Yy. The green plant, because it is recessive, was homozygous for its trait, yy. When these plants were crossbred, two of the offspring resulted in heterozygous for the yellow trait and the other two offspring were homozygous for the green trait.
4 0
3 years ago
Explain how phosphorus runoff into oceans and lakes from farming has a negative impact on the ecosystem.
yulyashka [42]
It causes eutrophication which means that the algae have too much nutrients and take over the pond, use the oxygen so there is not enough left for marine life, which die as a result.
6 0
3 years ago
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