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vovikov84 [41]
3 years ago
8

Which statement best illustrates the concept of heritability? a. Savannah inherited the mutated BRCA1 gene, increasing her risk

for certain cancers. b. Charlotte has a 50% chance of passing the gene for curly hair to her children. c. Augusta is outgoing, just like her father and older sisters. d. Jackson is the first person in his family in three generations to have blue eyes.
Biology
1 answer:
denpristay [2]3 years ago
4 0

Answer:

Option A

Explanation:

The concept of Hereditability is defined as the extent to which a certain genotype producing characteristics different to the mass genotype occur in a given population set.  

It general it refers to the inheritance of phenotype different than the general mass phenotype due to a varied or uncommon genotype.  

For instance, occurrence of diabetes is considered as a heritable disease because it can occur in upcoming generation if there exist a history of people suffering from diabetes

Hence, option A is correct

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According to the food chain, label the following organisms appropriately. 1. secondary consumer cat 2. primary consumer grass 3.
-Dominant- [34]

The correct sequence is:

1 Producers ( grass ): The producers are the green plants that produce food for the consumers. Green plants are the producers and energy produced is transferred to primary consumers

2 Primary consumer (mouse): The primary consumers include bacteria and herbivores that feed on the green plants for their energy

3 Secondary consumer (cat): The secondary consumers include the cat and other small animals that feed on primary consumers

4 Tertiary consumer (wolf): The are the at the highest level of hierarchy and feed on secondary consumers for their food. Example wolf,eagle

                                     

                                 

3 0
3 years ago
Which one of the following statements is true? A. Voluntary hyperventilation results in acidosis. B. Emphysema directly impairs
AlekseyPX

Answer:

The correct answer is option E.

Explanation:

Voluntary hyperventilation results in alkalosis, not in acidosis. Alkalosis takes place when the body possesses too many bases. It can take place due to decreased levels of carbon dioxide or due to enhanced level of bicarbonates in the blood, that is, a base.  

Emphysema directly impairs exhalation more than it directly impairs inhalation. Emphysema refers to a lung disorder, which leads to shortness of breath. In the individuals suffering from the condition, the air sacs in the lungs, that is, alveoli get damaged.  

The hemoglobin-oxygen dissociation curve shifts to the right at the time of metabolic acidosis. The low partial pressure of oxygen within the lungs results in the constriction of pulmonary arterioles. Thus, all the mentioned statements are false.  

8 0
3 years ago
The endomembrane system functions to make atp. Does not exist in plant cells. Includes the endoplasmic reticulum and the mitocho
mestny [16]

The correct answer is Includes the Golgi apparatus and the endoplasmic reticulum.

The endomembrane systemrepresents a group of membranes and organelles that works together to modify, package, and transport lipids and proteins. It exists in eukaryotic cells only. The endomembrane system does not include all the organelles, like mitochondria, chloroplasts, or peroxisomes.


4 0
3 years ago
Read 2 more answers
 HELP. HELP.
ohaa [14]

Answer:

true? im not sure though

:)

6 0
3 years ago
Read 2 more answers
Round pea allele R is dominant to wrinkled pea allele r, while yellow pea allele Y is dominant to green pea allele y. Homozygous
allsm [11]

Answer:

RrYy (F1 generation)

Explanation:

This is a typical dihybrid cross involving two genes in the pea plant; one coding for seed colour and the other for seed shape.

According to Mendel's law of dominance, an allele is capable of masking another allele in a gene, the allele that masks or is expressed is called the DOMINANT allele while the allele being masked is called RECESSIVE allele.

Homozygosity of a gene refers to it having the same type of alleles while heterozygosity refers to having different alleles.

In this example, allele for Round (R) and Yellow (Y) pea is dominant over the allele for Wrinkled (r) and green pea respectively.

Homozygous round green pea (RRyy) crossed with Homozygous wrinkled yellow (rrYY) will give rise to a heterozygous round yellow (RrYy) F1 offsprings.

4 0
3 years ago
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