What is the proven data called ?

A Drosophila fruit fly cell with 2N = 8 chromosomes-two of each kind- is called

aleksandrvk [35]

Answer: haploid, diploid) cell

Explanation:

4 0

2 years ago

When a living organism dies, it stops taking in new carbon. Thus, as the radioactive carbon-14 decays, the ratio of carbon-12 to

Alexxandr [17]

Answer: The fossil is 11459 years old.

Explanation:

Half-life of carbon-14 = 5700 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{5700\text{years}}$

$k=1.21\times 10^{-4}\text{years}^{-1}$

Now we have to calculate the age of the sample:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{years}^{-1}
t = age of sample = ?
a = let initial amount of the reactant = 100 g
x = amount decayed = 75 g
a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get
[tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}$

$t=11459years$

The fossil is 11459 years old.

4 0

3 years ago

After crossing purebred red (dominant) and purebred white (recessive) flowers, pink flowers appeared. Using symbols, show the cr

-Dominant- [34]

Since after crossing a red and a white flower produced pink flowers, the red color trait shows an incomplete dominance and has a genotype of Rr.
Using the Punnett to determine the cross between pink and white flowers:
| R | r |
r | Rr | rr |
r | Rr | rr |

The results indicate that the cross between pink and white flowers will produce a ratio of 1:1

Rr x rr

3 0

3 years ago

Read 2 more answers

A) Identify and describe the four levels of protein structure.

fgiga [73]

The four levels of protein structure are distinguished from one another by the degree of complexity in the polypeptide chain. A single protein molecule may contain one or more of the protein structure types: primary, secondary, tertiary, and quaternary structure. 1. Primary Structure: describes the unique order in which amino acids are linked together to form a protein.

2. Secondary Structure: refers to the coiling or folding of a polypeptide chain that gives the protein its 3-D shape. There are two types of secondary structures observed in proteins. One type is the alpha (α) helix structure. This structure resembles a coiled spring and is secured by hydrogen bonding in the polypeptide chain. The second type of secondary structure in proteins is the beta (β) pleated sheet. This structure appears to be folded or pleated and is held together by hydrogen bonding between polypeptide units of the folded chain that lie adjacent to one another

3. Tertiary Structure: refers to the comprehensive 3-D structure of the polypeptide chain of a protein.

4. Quaternary Structure: is the structure of a protein macromolecule formed by interactions between multiple polypeptide chains. Each polypeptide chain is referred to as a subunit. Proteins with quaternary structure may consist of more than one of the same type of protein subunit.

6 0

3 years ago

Based on the assumption that individuals seek to maximize the return (in calories and nutrients) on their labor, __________ is a

erma4kov [3.2K]

Based on the assumption that individuals seek to maximize the return (in calories and nutrients) on their labor,<u> age and gender </u>is a model used by anthropologists to how food collectors decide which animals and plants to hunt or collect and which to ignore.

<h3>What is the meaning of "Labor"?</h3>

In its most basic sense, the term "labor" refers to employment that requires heavy manual labor, typically performed by unskilled laborers. However, the term "labor" in economics refers to manual labor. It also requires mental effort. In other words, work that is done physically or mentally in exchange for payment is considered labor.

<h3>What exactly does an anthropological do?</h3>

When it comes to human origins, physical, social, linguistic, and cultural development, behavior, and the cultures, organizations, and institutions that people have built over time, anthropologists study, assess, and help shape public policy.

Learn more about Labor here:-

brainly.com/question/606333

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6 0

1 year ago