Using radioactively labeled dna probes in studies of heredity makes it possible for a scientist to

Which symbols (genotypes) are involved in the cross to produce the F2 generation of pink flowers?

babunello [35]

R R Rr is the result of 1st punnet square and the genotype used to produce f2
r
r

8 0

3 years ago

Each of the proteins involved in DNA replication plays an important role. If one of these proteins was not functional it would h

Masteriza [31]

Answer:

Explanation:

1. Topoisomerase is an enzyme helps in over winding Or underwinding of DNA during replication. Helps in the topological correction. So non-functional topoisomerase leads to tangled DNA and prevents replication..

2. Primases are the enzymes helps in the synthesis of short RNA sequences used as primers in replication. Non functional primase leads to no primer synthesis.

3. DNA Polymerase is an enzyme helps in the addition of new nucleotide to the growing strand in replication. Non functional DNA polymerase prevents the strand growing as no new nucleotides were added.

4. Helicases are the enzymes helps in the separation of double strands into single and helps in each strand to be copied. Non functional helicase leads to prevention of unwinding of strands and replication inhibition.

5. ligase is an enzyme that joins nicks(small gaps) in the DNA strand by creating ester bond. Non functional ligase leads to unjointed gaps of lagging strand.

6. Single strand binding proteins(SSB's) are the small proteins that binds to the single strands of DNA and holds them in a place not to get together while replicating. Non functional SSB's leads to parental strands come back together and prevents replication.

4 0

4 years ago

Dated to approximately 500,000-400,000 years ago, the site of _______ has yielded a sample of 4,000 fossil fragments representin

Luden [163]

Answer:

c. Sima de los Huesos

Explanation:

7 0

3 years ago

Regions of biomes that are an inconsistent mixture of fresh and salt water include ______. Select one: a. ponds b. lakes c. stre

Lyrx [107]

D. Estuaries

Estuaries are a place where fresh and salt water mix.

5 0

3 years ago

What is the correct order for the hierarchy of biological organization from the least to the most complex? (concept 1.1)?

hjlf

Answer;

Molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem.

Explanation;

-The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

-Organisms are highly organized, coordinated structures that consist of one or more cells. Even very simple, single-celled organisms are remarkably complex: inside each cell, atoms make up molecules; these in turn make up cell organelles and other cellular inclusions.

-In multicellular organisms, similar cells form tissues. Tissues, in turn, collaborate to create organs (body structures with a distinct function). Organs work together to form organ systems.

4 0

3 years ago