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February 2026

34,964 public questions were asked this month.

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Recent questions

Latest from February 2026

DNA and Protein Synthesis In the 1940s, scientists thought all genetic material was contained in structures called chromosomes and that chromosomes had been found only in the nucleus of a cell (not in the cytoplasm!). Ch...
Asked by Void<3 1 answer
Cefalexin was developed through medical biotechnology. It kills disease-causing organisms by preventing them from developing a cell wall. Which term or terms best describes cefalexin?(1 point) Responses vaccine vaccine a...
Asked by sk 1 answer
Epistasis is observed when the allele of one gene masks the effects of another gene. Use the Punnett square to answer the question. What color would a dog's fur be if its genes are aabb? (1 point) Responses brown brown b...
Asked by Void<3 1 answer
Which object is in static equilibrium? a rolling ball that has a net force acting on it a cruising car that has no net force acting on it a book that has no net force acting on it and is sitting on a table a vase that ha...
Asked by ww 1 answer
Which statement best describes why Punnett squares are useful?(1 point) Responses Punnett squares are used to predict the most likely allele combinations of the parents in a cross. Punnett squares are used to predict the...
Asked by Void<3 1 answer
Which of the following mutations would be most likely to have a harmful effect on an organism?(1 point) Responses all mutations have a harmful effect on organisms all mutations have a harmful effect on organisms there is...
Asked by Void<3 1 answer
The gravitational force between Pluto and Charon is 3.61 × 1018 N. Pluto has a mass of 1.3 × 1022 kg, which is only slightly greater than Charon’s mass of 1.6 × 1021 kg. How far apart are Pluto and Charon? 2.0 × 107 m 2....
Asked by ww 1 answer
A tall, heterozygous pea plant is crossed with another tall, heterozygous pea plant. What is the probability that an offspring will be a short plant?(1 point) Responses 25% 25% 50% 50% 75% 75% 0%
Asked by Void<3 1 answer
What is the phenotype of a mouse that has the genotype Bb where B is the gene for black fur and b is the gene for brown fur assuming this gene follows a Mendelian inheritance pattern?(1 point) Responses fur with yellow h...
Asked by Void<3 1 answer
What benefit does using the CRISPR technique have in creating GMOs?(1 point) Responses It eliminates all risk of mutation. It eliminates all risk of mutation. Diversity within species can continue to increase through cro...
Asked by Void<3 1 answer
Which statement about cystic fibrosis is true?(1 point) Responses Carriers have an advantage over people who do not have the cystic fibrosis mutation. Carriers have an advantage over people who do not have the cystic fib...
Asked by Void<3 1 answer
Which statement is true?(1 point) Responses Amino acids do not need to be assembled in a particular order. Amino acids do not need to be assembled in a particular order. tRNA is attached to specific proteins in the cell’...
Asked by Void<3 1 answer
Use the image to answer the question. A horizontally aligned rectangle is shown as 10 meters long and 6 meters wide. A rectangular area is removed from the bottom right corner, with the remaining length as 8 meters and r...
Asked by sk 1 answer
How much force is needed to accelerate an object of mass 90 kg at a rate of 1.2 m/s2? 0.013 N 75 N 108 N 1080 N
Asked by ww 1 answer
Which statement is the first step of protein synthesis?(1 point) Responses Amino acids are linked together with peptide bonds. Amino acids are linked together with peptide bonds. DNA unzips between the base pairs. DNA un...
Asked by Void<3 1 answer
Use the image to answer the question. A composite shape is drawn using a rectangle and a triangle. The rectangle has a base labeled as 6 centimeters. A triangle showing a perpendicular height of 6 centimeters is stacked...
Asked by sk 1 answer
Eduardo has a 32-gallon fish tank. Describe what this measurement means.
Asked by Susan 1 answer
What would be the result of a cytosine base being substituted for a thymine base in a DNA segment during DNA replication?(1 point) Responses The sequence could code for the wrong amino acid during translation. The sequen...
Asked by Void<3 1 answer
The equation is f left parenthesis x right parenthesis equals 4 times x squared. The coordinates of the plotted points are labeled as left parenthesis negative 2 comma 16 right parenthesis, left parenthesis negative 1 co...
Asked by Sigma 1 answer
page 16 of 16 Area of Composite Figures Quick Check 3 of 53 of 5 Items Question Use the image to answer the question. A composite shape is drawn with a rectangle and a square. All lines are straight and all corners are m...
Asked by sk 1 answer
What process makes helpful traits more common in a group of organisms over time? (1 point) Responses Selective breeding Selective breeding Natural selection Natural selection Individual learning Individual learning Genet...
Asked by nope 1 answer
Use the image to answer the question. A composite figure is comprised of a rectangle and two congruent right triangle on either side. The triangle have a height of 4 inches and a width of 3 inches. The composite shape in...
Asked by sk 1 answer
When would it be appropriate to consider a sports drink instead of water to re-hydrate? (1 point) Responses When lifting heavy weights for 30 minutes. When lifting heavy weights for 30 minutes. When running for less than...
Asked by C.W 1 answer
Use the image to answer the question. An illustration shows a polygon where the top, right, and bottom sides are perpendicular to each other. A smaller rectangular piece is missing from the center of the left side of the...
Asked by sk 1 answer
Two siblings have the same parents but different heights. Which explanation best accounts for this difference? (1 point) Responses They received different combinations of genes for height. They received different combina...
Asked by nope 1 answer