Bio Lecture 15

Front 1

In Tay-Sachs, the cause of the disease can be traced to several mutations the Hexa gene, which encodes for an enzyme crucial for the degradation of a brain ________.

Back 1

fatty acid

Front 2

The _________ is a useful device to determine the probability of inheritance, and is usually represented by a 2 x 2 grid showing combinations of parental alleles.

Back 2

punnett square

Front 3

__________ is the most common genetic disorder in the United States.

Back 3

Cystic fibrosis

Front 4

Duchene muscular dystrophy and Color blindness are examples of _______ disorders.

Back 4

sex-linked

Front 5

Chromosomal disorders are a group of genetic disorders where the genetic changes have occurred at the level of the __________

Back 5

chromosomes

Front 6

In 1977, Fred Sanger developed the technology for sequencing DNA, and was the first person to sequence the DNA of a _________.

Back 6

virus

Front 7

The human genome contains about ________ bases.

Back 7

3 billion

Front 8

Although the number of _______ in the human genome was estimated to be about 100,000, in fact it turned out to only be about a quarter of that.

Back 8

genes

Front 9

Even thought humans have relatively few genes, the process of _______ allows for the same exons to encode for multiple proteins.

Back 9

Alternative splicing

Front 10

Even though we are one of the most complex organisms on the planet, less than ____ percent of the human genome is used to encode functional proteins.

Back 10

2

Front 11

In eukaryotic organisms, genes are not contiguous, but instead are split into small segments, known as ________.

Back 11

exons

Front 12

DNA sequences that resemble genes but are non-functional and are likely to be the remains of once-active genes that have mutated into non-functional genes are called _______.

Back 12

pseudogenes

Front 13

_______ are examples of repeating sequences in the human genome, with repeats of only 2 to 3 base pairs

Back 13

Microsatellites

Front 14

Some of the most abundant junk DNA in the human genome is made of ________, which are DNA sequences that behave like viruses and act independently.

Back 14

Transposons

Front 15

The sequencing of the human genome shows us that _______ is power, _______ is predicting, and that ________ is ruling

Back 15

Knowledge Explaining, Predicting