Biology

Which type of cell, if any, does not have a plasma membrane?

Started by sc00by25

Which two observations led Darwin to conclude that there is competition for survival?

Started by tiffannnnyyyyyy

Which protist group includes members with plantlike traits such as chloroplasts and multicellularity?

Started by TVarnum

What represents an organism's genome?

Started by ashley

A particular cross gives a modified dihybrid ratio of 9:7. What phenotypic ratio would you expect in ...

Started by bucstennis@aim.com

Give the sex-chromosome constitution (X and Y chromosomes) and possible genotypes of offspring ...

Started by Redwolflake15

Phenotypically wild-type F1 female Drosophila, whose mothers had light eyes (lt) and fathers had ...

Started by tiara099

Assume that you grew a culture of E. coli for many generations in medium containing 15N (from the ...

Started by jc611

Below is a diagram of DNA replication as currently believed to occur in E. coli. Arrows start from ...

Started by laurencescou

Describe a somewhat extraordinary finding related to the Tetrahymena telomerase enzyme.

Started by jman1234

Mutations that arise in nature, from no particular artificial agent, are called ________.

Started by fox

Assuming one mutational event in a gene, on average, which of the following mutagens or mutational ...

Started by Bob-Dole

What might be a reasonable function of restriction endonucleases in a bacterium, distinct from their ...

Started by karateprodigy

Homeostasis provides what kind of environment?

Started by joesmith1212

In addition to hydrogen bonding, what type of bonds may exist in the quaternary structure of a protein?

Started by lindiwe

The method of contracting an illness after touching a contaminated doorknob, diaper or handkerchiefis

Started by karen

The pons is represented by the letter ____.

Started by Anajune7

Selecting the Exception Four of the five answers listed below are somatic senses. Select the exception.

Started by Melani1276

Selecting the Exception Four of the five answers listed below are related by a common phase of ...

Started by soccerdreamer_17

In summer squash, spherical-shaped fruit has been shown to be dominant to elongated fruit. On one ...

Started by melly21297

If gene replacement therapy became available

Started by stevenposner

What type of bond is formed between amino acids?

Started by OSWALD

Which of the following is NOT true of ecosystems?

Started by sammy

Diuretics cause the kidneys to produce large amounts of urine. Unfortunately, they can also cause ...

Started by ec501234

Which is an allosteric modulator?

Started by jparksx